Not considering the electronic spin, the degeneracy of the first excited state (n=2) of H-atom is: Not considering the electronic spin the degeneracy of the first excited state (n=2) of H-atom is: November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi Physical Chemistry , Facebook Messenger WhatsApp Share this:TwitterFacebook Related