Q59
General ScienceChemistry
What is the order of increasing energy of the orbitals within a single energy level?
- a.d < s < f < p
- b.s < p < d < f
- c.p < s < f < d
- d.f < d < p < s
Answer: (B) s < p < d < f
Within one shell of a many-electron atom, orbitals with higher azimuthal quantum number l penetrate less towards the nucleus, so energy rises in the order s < p < d < f within a shell. The other orders put higher-l orbitals below lower-l ones, which is wrong.