neonbrapper14 neonbrapper14

27-10-2018
Chemistry

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How many neutrons does element X have if its atomic number is 21 and its mass number is 95?

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timmyJR timmyJR

27-10-2018

Atomic # = #of Protons(21)
Mass #= #of neutrons and protons(95)
Neutrons=74

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