Which orbital in each of the following pairs is lower in energy in a many-electron atom? (a) 2s, 2p (b) 3p, 3d (c) 3s, 4s (d) 4d, 5f

Which orbital in each of the following pairs is lower in energy in a m

1.	Which orbital in each of the following pairs is lower in energy in a many-electron atom? (a) 2s, 2p (b) 3p, 3d (c) 3s, 4s (d) 4d, 5f
Answer» <P> SOLUTION :(a) `2s LT 2p` (b) `p lt 3d` (C) `3s lt 4s` (d) `4d lt 5f`