Selection rules of spectroscopy

00:08 Single electron rules:
00:30 Rule for spin angular momentum (s)
01:24 Rule for orbital angular momentum (l)
03:14 Rule for total angular momentum (j)
03:53 Multi-electron rules:
03:59 Rule for spin angular momentum (S)
04:24 Rule for orbital angular momentum (L)
04:42 Rule for total angular momentum (J)
A summary of the selection rules for the electronic spectroscopy of one electron and poly-electron atoms.
To see a symmetry-based analysis of the parity selection rule (LaPorte selection rule), go here : • Symmetry: episode 113,...
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[@lseinjr1]

(For mobile users) 00:08 Single electron rules: 00:30 Rule for spin angular momentum (s) 01:24 Rule for orbital angular momentum (l) 03:14 Rule for total angular momentum (j) 03:53 Multi-electron rules: 03:59 Rule for spin angular momentum (S) 04:24 Rule for orbital angular momentum (L) 04:42 Rule for total angular momentum (J)

[@Stud.000]

Yo, thank you man, been 7 yrs, still useful for gens

[@akhilkm5091]

🎯 Key Takeaways for quick navigation: 00:08 🌟 *Introduction to Selection Rules in Spectroscopy* - Discussing the selection rules for electronic spectroscopy in single and multiple electron systems. - Initial focus on the change in spin angular momentum (Δs = 0) and its implications. 02:14 🔍 *Spin-Orbit Coupling and Quantum Numbers in Spectroscopy* - Exploration of spin-orbit coupling, especially significant in heavy elements. - Detailed look at quantum numbers: the rule of Δl (orbital angular momentum) and the introduction of quantum number J (spin-orbit coupling). Made with HARPA AI/

[@imeneyeddou6596]

DeltaL should not be equal to 0 we can't have transition between two states with the same L isn't it?

[@lseinjr1]

We can't have delta l = 0 (little l for just one electron), but we can have delta L (big L for multiple electrons), so long as we do not go from L = 0 to L = 0.

[@imeneyeddou6596]

@@lseinjr1 thank you sir for the answer

[@SourPickles8]

Does not mention anything relating to the parity, even->odd, odd->even (ALLOWED) and even->even, odd->odd (FORBIDDEN)

[@lseinjr1]

I have an entire video about the parity (Laporte selection) rule here: kzbin.info/www/bejne/sJecgpmIYph1o6M

[@sofiqulislam6447]

Who disliked it Plz. It's awesome

[@neutropie6383]

Good enough... Thank you. 😃

[@rkrishna4904]

Its really a gud video but the sound is too low...

[@vijayshankar5859]

+ 1 correspondes to absorption ?