Energy of Electron in many-electron atom

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Daniel_Frees_1L
Posts: 40
Joined: Fri Sep 28, 2018 12:18 am

Energy of Electron in many-electron atom

Postby Daniel_Frees_1L » Wed Oct 24, 2018 3:08 pm

The outline for test 2 says we should be able to 'Describe the factors affecting the energy of an electron in a many-electron atom.'

I know that electron energy increases in multi-electron atoms when the electron is in a higher level shell, and when the sub shell goes from s->p->d (aka quantum number l is increasing). Are there any other factors affecting energy of an electron in a many-electron atom we need to know?

Kelsey Warren 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: Energy of Electron in many-electron atom

Postby Kelsey Warren 1I » Wed Oct 24, 2018 5:10 pm

Yes, electron shielding occurs in multi-electron atoms, so an electron far from the nucleus will experience less of the positive charge of the nucleus. This results in what is called an "effective nuclear charge." I don't know if we have to know that term but probably should be familiar with the concept.

Matthew Tran 1H
Posts: 165
Joined: Fri Sep 28, 2018 12:16 am

Re: Energy of Electron in many-electron atom

Postby Matthew Tran 1H » Wed Oct 24, 2018 6:22 pm

Other factors are Coulomb's law (which I explain in the post titled "Coulomb's Law" in the Quantum numbers and the H-atoms section) and nodal planes.


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