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Out of Na and Mg , which has higher second ionisation energy? |
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Answer» Solution :`Na-1S^(2)2S^(s)2p^(6)3s^(1)` Mg - `-1s^(2)2s^(2)2p^(6)3s^(2)` Second ionisation energy of Na is higher because it acquires nearest noble gas configuration after LOSING ONE electron and 2nd electron is to be removed from the noble gas configuration. |
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