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

asked Oct 4, 2022 192k views

21 votes

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

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3 votes

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

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