Question

14.The number of proton in an atom is 20,then the number of electron in its ion y2+ will be​

Answer 1

Answer:

Number of protons is equal to the number of electrons in an atom. It is given that an atom of an element Y contains 20 electrons. Therefore, number of electrons in its ion Y2+ is 18 (20 → 2).

Answer 2

Your answer is 18
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