An atom has 13 protons and 14 neutrons. What is its mass number?

asked Jul 11, 2016 25.0k views

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3 votes

you add 13 and 14 and get 27 because It is the total amount.

Aqdas answered Jul 12, 2016

by Aqdas

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1 vote

Protons have a mass of 1
Neutrons have a mass of 1

So 13*1 + 14*1 = Mass number 27

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