Among O2-ion and Mg2+ ion, which one have larger size and why?
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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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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.
hope this helped you , if it is then plzzz mark as brainliest....... . !!
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