which one of the following sequences with regard to energy content of different orbitals, is correct?
A)1s<2s<2p<3d<4s<4p
B)1s<2s<2p<4s<3d<4p
C)1s<2s<4s<2p<4p<3d
D)1s<2s<3d<4s<2p<4p
Actually none of them are right.
But one can consider the second option by just inserting a 3s before the 4s level and by Aufbau principle, the series will be in order of increasing energy.
But one can consider the second option by just inserting a 3s before the 4s level and by Aufbau principle, the series will be in order of increasing energy.