2 years ago

What is the mass number of this atom? A.3 B.4 C.7 D.10

2 answers:

8 0

C. 7
The mass number of this atom is the number of protons and the number of neutrons combined, which in this case would be 3+4 or 7.

Hope this helps.

Inessa [10]2 years ago

4 0

<span>What is the mass number of this atom?
</span>
<span>C.7</span>

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