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The approximate atomic mass of an atom is determined by adding what two subatomic particles?

(A) protons and electrons
(B) electrons and neutrons
(C) protons and neutrons
(D) none of the above

2 Answers

4 votes

Answer:

Protons and neutrons

Step-by-step explanation:

User Shion
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3 votes

Answer:

(C) protons and neutrons

Step-by-step explanation:

User Kalilah
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