If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the element?

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asked Oct 7, 2021 21.5k views

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Spacer · Answer 1 · 2021-10-11T22:11:49+0000

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uestion

If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the

element?