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Why the Sodium have greater second ionisation energy than first one??? |
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Answer» nic Configuration of Na = [Ne]3s¹The first electron is removed from 3s orbital. LET the ionisation enthalpy be (IE)1.After removing 1 electron, configuration becomesNa = [Ne] (Stable Electronic Configuration)Since, the SECOND electron is going to be removed from a stable electronic configuration, so it requires more ENERGY {(IE)2}.That's why SODIUM have greater second ionisation energy than first one. |
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