See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

x = 9, y = 3, z = 2 In one electron system all orbitals of a shell are degenerate (same energy level). In case of many electron system different orbitals of a shell are non-degenarate. Hence, in second excited state only three p-orbitals (2p) are degenerate. H-atom 1s n = 1 n = 2 2s 2p 3s n = 3 3p 3d AITS-PT-I (Paper-2)-PCM(Sol.)-JEE(Advanced)/2023 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 13 H-ion 1s Ground state 1st excited state 1s 2p 2s 1s 2s 2p 2nd excited state