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What is theelectronicconfigurationof the elementwith (i)Z= 57 . Is ita d- orf- blockelement ? |
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Answer» Solution :As explainedin the foot thenote onpage`3//14`the electronicconfigurationof ` ( La = 57 ) " is"1 s^(2)2S^(2)2p^(6) 3S^(2)3p^(6)3d^(10)4s^(2)4p^(6)4d^(10)5s^(2)5s^(6) 6S^(2)5d^(1)` instead of the EXPECTED `1s^(2)2s^(2) 2p^(6) 3s^(2) 3p^(6)3d^(10) 4s^(2) 4p^(6) 4d^(10) 5s^(2) 6s^(2) 4f^(1)` Sincethe lastelectronenters the 5d- orbitalit is calledd- blockelementand not thef-blockelement . |
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