1.

Arrange the1s, 2s, 4s, 3p, 4p and 3dorbitalsaccordingto increasingorderof energy .

Answer»

SOLUTION :Energy order :
` 1 s lt2s lt2p lt3s lt 3P lt4s lt 3dlt 4p`
thisorderis basedon (n+1)(n+l)is samethan nis moreenergyis more


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