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lubasha [3.4K]
3 years ago
15

an element's atomic number is the A. mass of the atom B. number of the protons in an atom's nucleus C. weight of the atom D. sum

of the protons and neutrons in an atom
Biology
2 answers:
Wewaii [24]3 years ago
8 0

Yup.. thats B alright.

OLga [1]3 years ago
7 0
The answer is letter B, the number of protons!
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