27-01-2021
Biology

contestada

A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have? (3 points)

13

5

9

4
Please help :c

Respuesta :

ellakeathley5 ellakeathley5

27-01-2021

I think the answer is 5! Neutrons + Electrons=9 so 4+5=9. I hope this helps!

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