why is magnesium ion smaller than oxygen and also they havesame electronic configuration
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Mg2+ and O2- ions are isoelectronic (they have the same number of electrons). However, magnesium has a greater number of protons than oxygen, and hence greater effective nuclear charge and larger force of attraction with the valence electrons.
Answered by
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Mg2+ and O2- ions are iso electronic (they have the same number of electrons). However, magnesium has a greater number of protons than oxygen, and hence greater effective nuclear charge and larger force of attraction with the valence electrons.
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