14-12-2020
Chemistry

contestada

The atomic mass of an element is:
A. The number of protons and electrons
B. The number of protons and neutrons

Respuesta :

Аноним Аноним

14-12-2020

Explanation:

it b

....

hope it helps!

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brianna119560 brianna119560

14-12-2020

According to me the brainliest The answer is Muñaño

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