If the atomic number of an element is 6 and its mass number is 20, how many neutrons are in the atom's nucleus?

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asked Sep 9, 2018 22.8k views

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Brian Dupuis · Answer 1 · 2018-09-14T01:48:07+0000

Remember

Mass number - atomic number = number of neutrons
Remember that mass number is the sum of both protons and neutrons
The atomic number tells us how many protons there are

20 - 6 = 14 neutrons

There are 14 neutrons in the nucleus.

If the atomic number of an element is 6 and its mass number is 20, how many neutrons are in the atom's nucleus?

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