KarenBeckner KarenBeckner

19-03-2017
Biology

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If element X has 15 protons, how many electrons does it have?

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Аноним Аноним

19-03-2017

If element X has 15 protons, it would also have 15 electrons.

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19-03-2017

If the element has 55 protons it is celcium and it also has 55 electrons. It has an atomic mass of 133 (132.9) so to get the number of neutrons you subtract the atomic mass and the number of protons.

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