lilliebpierce lilliebpierce

28-03-2018
Physics

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Beryllium has a nucleus composed of protons and neutrons. Given the data, how many neutrons are in a typical Beryllium nucleus?
A) 3
B) 4
C) 5
D) 9

Respuesta :

Bladerunner1976 Bladerunner1976

28-03-2018

Beryllium has a mass number of 9 and 4 protons. To find the number of neutrons you need to subtract the number of protons from the mass number. so...
neutrons = mass - # protons
neutrons = 9 - 4 = 5

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Аноним Аноним

28-03-2018

I believe the answer is C

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