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The atomic number of an atom is the number of _____

protons
electrons and neutrons
protons and neutrons
neutrons

2 Answers

7 votes
atomic # is how many protons and then atomic mass is protons and neutrons
User Basit ZIa
by
4.8k points
1 vote

Answer:

The number of protons

Step-by-step explanation:

I cant really explain it

User Doug Steinberg
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5.7k points