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EastWind [94]
3 years ago
7

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

Chemistry
2 answers:
Maslowich3 years ago
8 0

you add 13 and 14 and get 27 because It is the total amount.
Hitman42 [59]3 years ago
3 0
Protons have a mass of 1
Neutrons have a mass of 1

So 13*1 + 14*1 = Mass number 27
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