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PLEASE HELP!!! What is the atomic mass number equal to? ? # electrons ? # protons + # electrons ? # protons ? # protons - # electrons
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3 votes
PLEASE HELP!!!

What is the atomic mass number equal to?
? # electrons
? # protons + # electrons
? # protons
? # protons - # electrons

User Octav
by
6.7k points

1 Answer

7 votes
atomic no = no of electrons present in atom
and atomic mass = no of protons + no of neutrons
User Sheldonhull
by
7.4k points
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