Question

For multi electron system, the increasing order
of energy of the orbitals 4d,45, 5s, 4p is
4f < 4d < 5s < 4p
4p < 5s < 4d < 4f
4p < 4d < 45 < 55
4p < 5s < 4f < 4d​

Answer 1

Answer:

2.4p<5s<4d<5s

Explanation:

according to Aufbau principle ,

1)Electrons occupy orbitals having lower energy before occupying higher energy orbitals.

2)Energy of orbital is equal to sum of principal and azimuthal quantum numbers.

3)according to this principal ,electrons are filled in the following order :1s, 2s,2p,3s,3p,4s,3d,4p,5s,4d,5p,6s,4f,5d,6p,7s,5f,6d,7p