Science, asked by Poojayam7ag0iftymalp, 1 year ago

Among O2-ion and Mg2+ ion, which one have larger size and why?

Answers

Answered by SARDARshubham
63
O2- will have larger atomic size.

O2- has 10 electrons and 8 protons, while Mg+ has 10 electrons and 12 protons. As in Mg+ number of protons is more that compared to O2- the attraction force between the nucleus and the electrons will increase and the atom of Mg2+ will get shrink and hence has smaller atomic size.

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