cubist8911 cubist8911

04-02-2018
Chemistry

contestada

If an atom of the twelfth element (magnesium) has an atomic mass of 25, how many protons (p), neutrons (n), and electrons (e) does it have?

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marwa28 marwa28

10-02-2018

It has 12 protons and 12 electrons.
And it has 13 neutrons.

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kittenkaymcc kittenkaymcc

12-09-2018

12 protons, 12 electrons and 13 neutrons

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