5 events
when toggle format what by license comment
Apr 22, 2019 at 0:30 comment added Geoff Hutchison @Dr.EricScerri - No, for Helium, the transitions from 1s to 2s and 1s to 2p have different energies. (e.g., NIST tables. That's probably worth a separate question.
Apr 21, 2019 at 1:06 comment added Dr. Eric Scerri Actually I have always had great difficulty in connecting removal of degeneracy with the mere presence of more than one electron. This is why I have been searching for answers. Let me raise a further question in the hope of getting clear on this issue. He of course has 2 electrons. Will the energies of transitions from 1s to 2s be the same as between 1s and 2p? I think the answer is YES. But this is a case in which the relative penetration of electrons in orbitals fails to give an answer as I see it. www.ericscerri.com
Apr 20, 2019 at 0:10 comment added Geoff Hutchison @Dr.EricScerri - no problem - you can of course write your own answer if you wish. (I expect that you've thought about how to explain this far more than I have.) That's how StackExchange works.
Apr 18, 2019 at 21:30 comment added Dr. Eric Scerri I'm sorry to say that I dont find this answer at all satisfactory. For example why is degeneracy lost in the case of the He atom. If we are to discuss it in terms of orbitals that are occupied then we are only dealing with the 1s orbital. (not the p and d that the above answer appeals to).
Oct 29, 2014 at 13:21 history answered Geoff Hutchison CC BY-SA 3.0