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g100num [7]
4 years ago
11

If an atom contains 3 protons, 4 neutrons, and 3

Biology
2 answers:
Elenna [48]4 years ago
7 0
C. 7
protons + neutrons = mass number
Debora [2.8K]4 years ago
7 0

Answer:

the answer is C 7

Explanation:

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