kylecrawford0203 kylecrawford0203

15-12-2021
Chemistry

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If beryllium has a mass number of 9 and an atomic number of 4
Calculate the number of protons, neutrons, and electrons

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prechar16 prechar16

15-12-2021

Answer:

mass number=9

atomic number=4

Explanation:

protons =4(protons is the same as atomic number)

neutrons=mass number-protons=3

electrons=4(it is the same as protons because it didn't gain or loose a charge)

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