Question

1) the number of protons or electrons in an atom is called................... of that atom.
2) the number of protons and neutrons in an atom is called.................... of that atom.
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Answer 1

Answer:

$\huge\mathfrak\red{BONJOUR}$

1. The number of protins or electrons in an atom is called atomic number.

2. The number of protons and neutrons in an atom is called mass number.

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