Biology
Biology, 27.01.2021 07:00, kyliegriffis

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

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A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons doe...

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