Question

Which one of the following is the correct order of energies of 3p, 3d, 4s and 4p orbitals as per Aufbau principle ?

• A. $3p<3d<4s<4p$
• B. $3p<4s<3d<4p$
• C. $3d<43<4p<3p$
• D. $3d<3p<4p<4$

Answer 1

The correct option is

B

$3p<4s<3d<4p$

Correct order of energies of the given orbital as per Aufbau principle is:

$3p<4s<3d<4p$