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Chemistry Quarterly Review
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The atomic number of an atom is equal to the number of
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protons in the atom
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1 / 19
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Terms in this set (19)
The atomic number of an atom is equal to the number of
protons in the atom
Compared to the entire atom, the nucleus of the atom is
smaller and contains most of the atom's mass
The mass number of an atom is always equal to the total number of its
protons + neutrons
Which nucleus is from an isotope of an atom with the nucleus shown below:
6n
6p
8n/6p
An atom of Ar shown below has a nucleus that contains a total of
40/ 18 Ar
18 protons