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The atomic number is the _____.

1: atomic mass
2: number of neutrons
3: protons plus the neutrons
4: number of protons

User Sopehl
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2 Answers

4 votes

Answer:

# of atoms

Step-by-step explanation:

User Ashley Williams
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3 votes

Answer:

it is the number of protons in the nucleus

Step-by-step explanation:

User Nijogeorgep
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