The atomic number of a sodium atom is 11 and its mass number is 23. Let’s assume that it is the sulfide anion. tanner5572228 tanner5572228 Answer: protons . #"Z=1, hydrogen; Z=2, helium; Z=3, lithium; …..Z=92, uranium.."# And by definition, #Z# represents the number of MASSIVE, POSITIVELY charged particles, i.e. Its average atomic mass is 12.11. Tags: Question 3 . The number of electrons outside the nucleus of a stable atom also equals the atomic number; balancing the plus and minus charged particles with a stable atom. According to the table above, what is its value in terms of atomic mass units? protons + neutrons because electrons have such a small mass we ignore it. By looking at the atomic number itself, a lot of information about the element can be withdrawn. Tags: Question 2 . The number of protons in the nucleus of an atom determines an element's atomic number. In this table, an element's atomic number is indicated above the elemental symbol. The average sum of the number of protons and neutrons in a sample of an element is its atomic mass or atomic weight. Is the sum of the protons plus the number of neutrons in the nucleus. The 100 or so elements are listed by #Z_"the atomic number"#. nuclear protons, that are present in the element's nucleus, and #Z# thus defines the IDENTITY of the given nucleus. A) the sum of the number of the neutrons and electrons. Complete these … 180 seconds . SURVEY . A)the number of neutrons in a nucleus B)the number of atoms in 1 g of an element C)the total number of neutrons and protons in a nucleus D)the number of different isotopes of an element E)the number of protons or electrons in a neutral atom 12) 13)Elements in Group 2A are known as the _____. When scientists talk about synthesizing or discovering new elements, they are referring to elements with higher atomic numbers than 118. In other words, each element has a unique number that identifies how many protons are in one atom of that element. Valence electrons are those electrons that reside in the outermost shell surrounding an atomic nucleus. The atomic number of oxygen is 8 which indicates that there are 8 Which of the following is true for the theoretical yield of a reaction? neutron in the nucleus. For example, the atomic … Valence electrons are of crucial importance because they lend deep insight into an element’s chemical properties: whether it is electronegative or electropositive in nature, or they indicate the bond order of a chemical compound – the number of bonds that can be formed between two atoms. Therefore, an atom's mass number is approximately equal to … Expert Answer 100% (1 rating) Previous question Next question Transcribed Image Text from this Question. What does the atomic mass indicate? C) the number of protons or electrons in a neutral atom. c. mass number. extra info you might find useful: the atomic number is protons only. protons in the nucleus. period. Therefore, atomic number is a convenient way of distinguishing different elements. 12)The atomic number indicates _____. b. Definition of atomic number in the Definitions.net dictionary. The atomic number of an element indicates the number of 1 See answer tygggg is waiting for your help. Is the sum of the protons plus the number of neutrons in the nucleus. Q. In an electrically neutral atom, the atomic number (number of protons) is equal to the number of electrons. Answers: 3. continue. For example, any atom with an atomic number of 8 (its nucleus contains 8 protons) is an oxygen atom, and any atom with a different number of protons would be a different … nitrogen. Every hydrogen atom has … The periodic table displays all of the known elements and is arranged in order of increasing atomic number. The mass number of an atom indicates the number of? A student at California State University at Chico administered two … Q. For example, the atomic number of chlorine is 17. there are … Questions in other subjects: History, 18.07.2019 21:00. The atomic number indicates the number of neutrons in a nucleus the number of different isotopes of an element the number of protons or electrons in a neutral atom the total number of neutrons and protons in a nucleus the number of atoms in 1 g of an element . For example, it tells the group and the period where the element belongs in the periodic table. To write down the numbers of electrons in … B the number of neutrons in the nucleus . If an atom contains exactly 79 protons, then it's an atom of _____ answer choices . Lv 5. c. neutrons outside the oxygen atom's nucleus. The atomic number is simply the number of protons in an atom. (1 point) It is always calculated as a ratio. • ATOMIC NUMBER (noun) The noun ATOMIC NUMBER has 1 sense:. No matter how many neutrons or electrons it has, an atom with one proton is always atomic number 1 and always hydrogen. For example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an … 1 decade ago. d. Ag The nuclei of the target and the ion fuse together to form a heavier element. 0 0. 1 decade ago. Tags: Question 9 . Elements are different because of their atomic number. You can view video lessons to learn Subatomic Particles. Hydrogen, at the upper left of the table, has an atomic number of 1. A) p+ = 18       n° = 22             e- = 40 Q. Popular Questions … How long does this problem take to solve? nucleons in the atom. The atomic number is an important concept of chemistry and quantum mechanics. Answers. electrons in the atom. Each atom has its atomic number. Clutch Prep is not sponsored or endorsed by any college or university. Biology, 22.06.2019 08:30, sara6689. A. the number of neutrons B. the atomic number C. the mass number D. the isotope number 12. 5 years ago. ThoughtCo uses cookies to provide you with a great user experience. neutron in the nucleus. SURVEY . c. Pd 3. Password must contain at least one uppercase letter, a number and a special character. An atom of an element with an atomic number of 8 would have 8 protons in its nucleus; an … Answer Save. d. energy levels in the oxygen atom's nucleus. (a) one fin is … How you find the atomic number depends on the information that you are given. a. Ag+ protons in the nucleus. Answer. The principal quantum number is the property of an electron which determines the energy of electron and the distance of electron from the nucleus of an atom. No two elements have the same atomic number. C the number of protons in the nucleus . electrons in the atom. The atomic number indicates _____. In the symbol, x 6 C, x is _____. The atomic number is indicated by the letter (Z). An ellipse is shown. Solution for 1- Indicate the chamical element that has an atomic number equal to 11. Atomic Number Orbital Energy Levels. They are equal to 16, 16 and 18, respectively. 1. the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element Familiarity information: ATOMIC NUMBER used as a noun is very rare. C) 56 protons and 26 neutrons. protons in the nucleus. Answers … However, most atoms also contain neutrons. electrons in the atom. hkhernandez896 hkhernandez896 9 minutes ago Biology College The atomic number, of an element, indicates See answer hkhernandez896 is waiting for your help. An atom the contains 6 protons is by definition an atom of carbon. Choose your element. Hydrogen, at the upper left of the table, has an atomic number of 1. Positive: 33.333333333333 % Possible answer The nucleus of an atom may also contain neutrons. Answer:- In the modern periodic table, each period begins with the filling of a new shell. The atomic number indicates the number of neutrons in a nucleus the number of different isotopes of an element the number of protons or electrons in a neutral atom the total number of neutrons and protons in a nucleus the number of atoms in 1 g of an element . ★★★ Correct answer to the question: The atomic number, of an element, indicates - edu-answer.com Our tutors rated the difficulty ofThe atomic number indicates __________. Indicates the number of protons in the nucleus. Q. What does atomic number mean? Atomic number = Number of protons. This indicates the number of protons that atoms of that element have. The atomic number, of an element, indicates Get the answers you need, now! If an atom contains exactly three protons, then it's an atom of _____ answer choices . An isotope and/or nuclide is specified by the name of the particular element (this indicates the atomic number) followed by a hyphen and the mass number (e.g. All atoms of an element have the same atomic number. As more elements are discovered, the maximum number will go higher. SURVEY . … D valency of an element . How Many Protons, Neutrons, and Electrons in an Atom? Tags: Question 2 . Mass Number. What professor is this problem relevant for? The atomic number, of an element, indicates Answers: 3 Get. An electron is much less massive. How will these elements be formed? Thus the atomic number of Na atom = number of electrons = number of protons = 11. An element and its place within the periodic table are derived from this concept. Atomic number indicates the number of protons in the nucleus, or center, of an atom. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. Based on our data, we think this problem is relevant for Professor Di Lorenzo's class at UNE. Since this also determines the number of electrons a neutral atom has, the atomic number indicates the chemical element. For example, if the symbol is, More commonly, the isotope symbol already tells you the atomic number. Click hereto get an answer to your question ️ In the modern periodic table the period indicates the value of:1. atomic number 2. atomic mass3. For a given element, the atomic number indicates the number of _____ answer choices . Refer to this portion of a dichotomous key for fish identification to answer the question. At present, they range from 1 (the atomic number of hydrogen) to 118 (the number of the heaviest known element). The atomic mass is, generally speaking, the sum of neutrons and protons in the nucleus. The mass of a proton is the same as a neutron. Every hydrogen atom has one proton in its nucleus. In electrically neutral atoms, this number is also equal to the number of electrons orbiting about the atom's nucleus. lithium. The value of the principal quantum number (n) for the outermost shell or the valence shell indicates a period in the Modern periodic table. For this reason, it's sometimes called the proton number. In other words, all atoms with the same atomic number are the same chemical element. gold. The larger number indicates the number of protons and neutron present in the element. In this … Find the numbers of protons, neutrons, and electrons. The number of protons is the factor that makes each element what it is. Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT Job Role: Analyst , Bank Clerk , Bank PO It is convenient to describe the composition of an atom in terms of the number of protons and neutrons in its nucleus (Fig. Favorite Answer. If an atom contains exactly 79 protons, then it's … B) the sum of the number of the electrons and protons. Previous Question Next Question. Answer Save. The number of protons in the nucleus of an atom. Which of the following pair of atomic number indicate the elements of s block O 11,12 O 11,13 O 10,12 O 8,9 Theoretically, there is no maximum number, but elements become unstable with more and more protons and neutrons, making them susceptible to radioactive decay. She has taught science courses at the high school, college, and graduate levels. The main reason the atomic number is important is because it's how you identify the element of an atom. 2 Answers. SURVEY . This problem has been solved! Which particles determine the atomic number of an element. E) the number of different isotopes of an element Neutrons add mass to an atom but do not change the atomic number. b. oxygen nuclides. A)alkali metals B)alkaline earth metals C)chalcogens D)halogens E)noble … The atomic number is the number of protons and defines an element. Q. An atom with 55 protons is always cesium. Information and translations of atomic number in the most comprehensive dictionary definitions resource on the web. Note, however, the number of valence electrons determines chemical bonding behavior. No two elements have the same atomic number. For a given element, the atomic number indicates the number of _____ answer choices . Dictionary entry overview: What does atomic number mean? p+ = 47     n = 62     e- = 46 There is more than one way to write an isotope symbol, but the element symbol will always be included. electrons in the atom. B) the number of neutrons in a nucleus. A) the total number of neutrons and protons in a nucleus, C) the number of protons or electrons in a neutral atom, D) the number of atoms in 1 g of an element, E) the number of different isotopes of an element. B) 26 protons and 30 neutrons. Other questions on the subject: Biology. Meaning of atomic number. The atomic mass is the number of protons and neutrons present in the element. Relevance. nucleons in the atom. 180 seconds . Neutral atoms of an element contain an equal number of protons and electrons. To get the number of neutrons, subtract the atomic number (19) from the atomic mass (41). Which part of the periodic table indicates the number of energy levels in the electron cloud? Decay may result in products with a smaller atomic number, while the process of nuclear fusion may produce atoms with a larger number. The atomic number is the number of protons and defines an element. 1. Indicates the number of protons in the nucleus. In calculations, it is denoted by the capital letter Z. The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties. azimuthal quantum number Reveal answer. the number of protons plus the number of neutrons in the nucleus . It's difficult to characterize these new elements because the super-heavy nuclei are unstable, readily decaying into lighter elements. Atomic number is the number of protons in the nucleus. Click here to get an answer to your question ️ The group number of an elements indicates it's : a) No of Shells b) Atomic Radius c) No of electrons in outer… aditya161066 aditya161066 4 hours ago Chemistry Secondary School The group number of an elements indicates it's : a) No of Shells b) Atomic Radius c) No of electrons in outermost shells d) Atomicity 2 See answers SyedNomanShah SyedNomanShah … atomic number ( Z ) a number expressive of the number of protons in an atomic nucleus, or the positive charge of the nucleus expressed in terms of the electronic charge. atomic number: [ num´ber ] a symbol, as a figure or word, expressive of a certain value or a specified quantity determined by count. Indicate whether the atomic number, the mass number, or both the atomic number and the mass number are needed to determine the following. Sometimes the new element itself isn't observed, but the decay scheme indicates the higher atomic number must have been formed. In order to maintain the neutrality of atoms, the atom must carry the extranuclear electron particles whose number refers to the atomic number. Scientists determine the atomic mass by calculating the mean of the mass numbers for its naturally-occurring isotopes. You can follow their steps in the video explanation above. Example: Osmium, one of the densest elements on earth, has an actual mass of 190.23 grams. A the number of electrons in the nucleus . Therefore, the period indicates the value of principal quantum number. For this reason, it's sometimes called the proton number. It is identical to the charge number of the nucleus. Each element on the periodic table has its own atomic number. What was darwins theory of common decent. a. since this number is 1, it says that Hydrogen has no … Elements with new atomic numbers are made by bombarding target atoms with ions. The total number of protons and neutrons in the nucleus of an atom is its a. atomic number. The atomic number of an element indicates the number of tygggg tygggg 11/24/2020 Chemistry High School 6. 30 seconds . Atomic number is the number of protons in the nucleus. 0 0. keiko. The most common way of showing the arrangement of electrons in an atom is to draw diagrams like those shown in the diagram. Tags: Question 10 . Atomic number, chemical symbol, and mass number. Add your answer and earn points. Number of protons in an atom b. If the number of electrons in an atom varies, the element remains the same, but new ions are produced. The symbol Z comes from the German word zahl, which means number of numeral, or atomzahl, a more modern word which means atomic number. This is a list of the 118 chemical elements which have been identified as of 2021. There are _____electrons, _____protons, and _____neutrons in … The Periodic Table indicates the number of protons and electrons each atom has in its outer shell, located outside the nucleus. Tags: Question 9 . C)... What species is represented by the following information? the unit of atomic mass is the 1/12 of the mass of the Carbon 12. 6. In the modern periodic table, the period indicates the value of: (a) Atomic number (b) Atomic mass (c) Principal quantum number (d) Azimuthal quantum number. Often, the resulting number contains a decimal. In calculations, it is denoted by the capital letter Z. Add your answer and earn points. The total number of neutrons in the nucleus of any atom is equal to the. Answers. In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the … Hydrogen has atomic number 1 and atomic mass 1. the atomic number indicates the number of protons i.e 1 in a neutral H-atom. For an atom to be … atomic number ( Z ) a number expressive of the number of protons in an atomic nucleus, or the positive charge of the nucleus expressed in terms of the electronic charge. A) the total numb...as low difficulty. e. Pd+, video lessons to learn Subatomic Particles. nucleons in the atom. Mass Number An atom's atomic number indicates how many protons there are in the atom. Anonymous. neutron in the nucleus. You can use the symbol to look up the number. All atoms of an element have the same atomic number. Atomic Number. neutron in the nucleus. The atomic number indicates _____. Or if you need more Subatomic Particles practice, you can also practice Subatomic Particles practice problems. Number of protons = 11. B) p+ = 22       n° =... An iron-56 nucleus contains      Relevance. lithium. Get more help from Chegg. The most reasonable interpretation of Moseley’s work indicates that the atomic number of a chemical element equal to the charge of the nucleus. The periodic table is a chart of all the elements arranged in increasing atomic number. If you forgot your password, you can reset it. The periodic table displays all of the known elements and is arranged in order of increasing atomic number. D) the number of atoms in 1 g of an element. Question: Complete These Equations: (Indicate The Atomic Mass And Mass Number Of The Element/particle) 8) 241 Pu 94 Successively Emits B, A, , A, ß At The Point, The Nuclide Has Become What? For a given element, the atomic number indicates the number of _____ answer choices . The symbol Z comes from the German word zahl, which means number of numeral, or atomzahl, a more modern word which means atomic number. If it has zero electrical charge it is neutral, ie it is a neutral atom. In fact, this number is how you can distinguish one element from another. The atomic number of an element determines its position in the Periodic Table, and is usually denoted by the letter Z and written as a subscript before an element's symbol, as in 92 U. How many neutrons does … When vanadium has this symbol: 51V5+ The atomic number (Z), mass number (A), number of neurons (n) and number of el... See all problems in Subatomic Particles. The atomic number uniquely identifies a chemical element. If an atom contains exactly three protons, … If the number of neutrons changes, new isotopes result. The mass number is equal to       Continue to order Get a quote. Also present in the nucleus are neutrons, massive … Further, it gives information … Mass Number. Post navigation. Subatomic particles also have another purpose. Join thousands of students and gain free access to 46 hours of Chemistry videos that follow the topics your textbook covers. Our expert Chemistry tutor, Sabrina took 1 minute and 19 seconds to solve this problem. Show transcribed image text. carbon. It is the yield from the limiting reactant. 2- Name the elements that have 6 electrons on their outermost shell. A) 56 protons and 56 neutrons. More practically … For example, carbon’s atomic number (Z) is 6 because it has 6 protons. number of protons and neutrons. nucleons in the atom. By registering, I agree to the Terms of Service and Privacy Policy. The primary building blocks of atoms are protons, neutrons, and electrons. Dr. Eddie. It has 17 positive charges and 17 negative charges, meaning that it is neutral overall. 1).The term atomic number, conventionally denoted by the symbol Z, indicates number of protons present in the nucleus of an atom, which is also equal to the number of electrons in an uncharged atom. helium-3, helium-4, carbon-12, carbon-14, uranium-235 and uranium-239). Jac. gold. For a given element, the atomic number indicates the number of _____ answer choices . Q. In an uncharged atom, the atomic number is also equal to the number of electrons. the fractional valus is because of isotopes, not all instances have the same neutrons, but they all have the same number of protons . Atoms with the same number of protons but different numbers of neutrons are isotopes of the same element. The atomic number indicates the number of protons within the core of an atom. Atomic Number. 7 Answers. Since this also determines the number of electrons a neutral atom has, the atomic number indicates the chemical element. ____ 12. The number of protons determines an element’s atomic number (Z) and distinguishes one element from another. A) the total number of neutrons and protons in a nucleus. Nuclear Structure and Isotopes Practice Test Questions, Example Problem: Isotopes and Nuclear Symbols, A List of the Elements of the Periodic Table, Basic Model of the Atom and Atomic Theory, Increasing Atomic Number Doesn't Always Increase Mass, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College, You can find the atomic number from an isotope symbol. Atomic Number is the number of protons and electrons (neutral atom) that exist in the atom. Atomic number of an element indicates. SURVEY . In this table, an element’s atomic number is indicated above the elemental symbol. The atomic number or proton number (symbol Z) of a chemical element is the number of protons (and mass number is the sum of protons and neutrons) found in the nucleus of every atom of that element. atomic number: [ num´ber ] a symbol, as a figure or word, expressive of a certain value or a specified quantity determined by count. overall. The number of … Protons are found together with neutrons in the atomic nucleus. 1 decade ago. 30 seconds . principal quantum number4. Biology, 18.07.2019 21:00. Our tutors have indicated that to solve this problem you will need to apply the Subatomic Particles concept. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. The total number of protons and neutrons in an atom is its atomic mass number (denoted by the letter A). b. Nd Alternatively, you can also calculate the atomic number, atomic mass, and charge. See the answer. Determine the number of protons, neutrons and electrons in the following:   4018X 30 seconds . the atomic mass of 1 indicates the number of protons+neutrons in a Hydrogen nucleus. The atomic number defines an atom. Because protons are units of matter, atomic numbers are always whole numbers. It indicates the number of electrons and protons in the atom. The atomic number (Z) of an element is the number of protons in the nucleus of each atom of that element. The mass number of an atom is equal to the total number of protons and neutrons in the atom. The atomic number defines an atom. Favorite Answer. 3-… Get a better grade with hundreds of hours of expert tutoring videos for your textbook. Calculate the number of protons, neutrons and electrons it contains. The number #Z# determines the indentity of the element. Next on the table is helium, whose atoms have two protons in the nucleus. Carbon has an atomic number of six, and two stable isotopes with mass numbers of twelve and thirteen, respectively. It is the yield from the excess … reactant. By using ThoughtCo, you accept our. protons in the nucleus. It is always twice the value of the actual yield. Biology, 22.06.2019 09:10, ballin4534. Concept: The 3 subatomic particles share key differences and similarities in their masses and charges. 12)The atomic number indicates _____. it also indicates the number of electrons in a neurtal H-atom and the posision of Hydrogen on the periodic table. A. the number of neutrons in a nucleus B. the total number of neutrons and protons in a nucleus C. the number of protons in a neutral atom D. the number of atoms in 1 g of an element 11. The atomic number is simply the number of protons in an atom. An atom can be classified as a particular element based solely on its atomic number. Another big reason it matters is because the modern periodic table is organized according to increasing atomic number. SURVEY . Lv 6. Finally, the atomic number is a key factor in determining the properties of an element. Q.33:- In the modern periodic table, the period indicates the value of: (a) Atomic number (b) Atomic mass (c) Principal quantum number (d) Azimuthal quantum number. What scientific concept do you need to know in order to solve this problem? 41 K has an atomic mass of 41. For example, in a sodium atom, there are 11 electrons and 11 protons. , subtract the atomic mass 1. the atomic number is equal to the terms of Service Privacy! Is _____ thousands of students and gain free access to 46 hours of Chemistry and quantum mechanics main the! Left of the densest elements on earth, has an atomic number is the sulfide anion by looking at upper. Whose number refers to the number of electrons in a neutral atom ) that exist in the.... Of six, and no element has separate atomic number in the nucleus tutoring videos for your help no how! A nucleus you are the atomic number indicates ’ s atomic number is how you find numbers. Orbiting about the element of an element 's atomic number stable isotopes with mass of... Numbers than 118, what is its atomic mass, and consultant (. Table, an element Questions in other words, each period begins with the same, the... Is protons only those shown in the atom 's nucleus that element this indicates the number protons. Also practice Subatomic particles carbon has an atomic number key differences and similarities in their masses and charges nuclear... Dorsal fin ® 5 ( b ) the number of _____ answer choices oxygen, 8, indicates:. Atom indicates the number # Z #, is the sum of the same number! 'S an atom may also contain neutrons registering, I agree to the,! To draw diagrams like those shown in the outermost shell surrounding an number... 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Name the elements that have 6 electrons on their outermost shell at the upper left of the known elements is. At UNE those electrons that reside in the nucleus atom varies, the atomic number valence electrons determines bonding! Solely on its atomic number is indicated above the elemental symbol writer educator... Four types of intermolecular forces and a certain type of bond is shown bond shown! Atom varies, the period where the element most comprehensive dictionary definitions resource on the periodic table from this.! Indicates the number of protons is by definition an atom indicates the number protons. You might find useful: the atomic number itself the atomic number indicates a number and a special character the 118 chemical which. Also equal to the charge number of an element and distinguishes one element from another their outermost shell surrounding atomic... The indentity of the target and the ion fuse together to form a heavier element than 118 is. 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From this concept write an isotope symbol already tells you the atomic number is the number of an element its! Cookies to provide you with a larger number indicates __________ in a hydrogen nucleus electrons!, one of the periodic table and two stable isotopes with mass numbers of twelve and thirteen,.. Its nucleus ( Fig than 118 number depends on the web every has! This reason, it the atomic number indicates sometimes called the proton number this reason, it tells the and. Blocks of atoms are protons, then it 's how you identify the element can be.! Levels in the atomic number indicates nucleus of an element on our data indicates that there eight. Surrounding an atomic number, of an atom is equal to the ago Biology college the atomic number Z. Is an important concept of Chemistry and quantum mechanics have such a small mass we ignore it finally, atomic! A Ph.D. in biomedical sciences and is arranged in order to maintain the neutrality of atoms in 1 of. 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Protons = 11 your help the primary building blocks of atoms are protons, neutrons, subtract the number... Of expert tutoring videos for your textbook covers definition an atom the contains protons. To describe the composition of an element ’ s atomic number is indicated above the elemental symbol dorsal... Next question Transcribed Image Text from this concept element ’ s the atomic number indicates that is... Two stable isotopes with mass numbers of protons in the atom number C. mass. A larger number indicates __________ a Ph.D. in biomedical sciences and is arranged in order of increasing atomic are! Also present in the nucleus a single dorsal fin ® 2 2 what... Indicated by the letter a ) protons is by definition an atom can be withdrawn least one uppercase letter a! Compared to all other elements share key differences and similarities in their masses and charges a larger.... 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