Question

Pick the orbital with the lower energy from the given pair
a)3d,4s

Answer 1

Answer:

The orbital / subshell with lower energy is 3d.

Explanation:

According to the rule , the lower the value of (n+l) for an orbital , the lower is it's energy . And if two orbitals have the same value of (n+l), the orbital with lower value of n will have the lower energy . Since , the (n + l) value of 3d orbital is greater than 4s orbital .