MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryAtomic StructureIntro
The correct order of increasing energy of orbitals in hydrogen atom is
0.1s < 2s < 2p < 3s < 3p < 3d < 4s < 4p < 4d < 4f
1.1s < 2s < 2p < 3s < 3p < 3d < 4s < 4p < 4d < 4f (same energy for same n)
2.1s < 2s = 2p < 3s = 3p = 3d < 4s = 4p = 4d = 4f
3.1s < 2s < 3s < 4s < 2p < 3p < 4p < 3d < 4d < 4f
Explanation
In a hydrogen atom (one-electron system), energy depends only on the principal quantum number n. All orbitals with the same n are degenerate: 2s = 2p; 3s = 3p = 3d; 4s = 4p = 4d = 4f.
Practice More Like This
Take chapter-wise tests, track your progress, and master Atomic Structure.
Start Free Practice →