Whichelectronicconfigurationof an elementhas abnormallyhighdifferencebetweensecondandthirdionizationenergy ?

Whichelectronicconfigurationof an elementhas abnormallyhighdifferenceb

1.	Whichelectronicconfigurationof an elementhas abnormallyhighdifferencebetweensecondandthirdionizationenergy ?
Answer» `1s^(2)2s^(2)2P^(6)3S^(1)` `1s^(2)2s^(2)2p^(6)3s^(2)3p^(1)` `1s^(2)2s^(2)2p^(6)` `1s^(2)2s^(2)2p^(6)3s^(2)` Solution :The elementwhichhas two elementin the valenceshellhas highestthirdionizationenergybecausein thiscase , the 3rdelectronhas TOBE lostfromthe INERTGAS CORE. In otherwordsoption ( d) iscorrect.