Question

what is the ratio between the number of neutrons present in carbon isotopes with mass numbers 12 and 14 is?​

Answer 1

Carbon,

Atomic Number =6= Electrons = Protons

Neutrons = Mass Number − Protons=12−6=6

Silicon,

Atomic Number=14=Electrons = Protons

Neutrons =  Mass Number −  Protons =28−14=14

Ratio =6:14 or 3:7

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