Pauli Exclusion Principle

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Aprice_1J
Posts: 55
Joined: Wed Sep 18, 2019 12:16 am

Pauli Exclusion Principle

Postby Aprice_1J » Sat Oct 26, 2019 11:21 pm

Can someone explain the pauli exclusion principle? In my notes from lecture I have, "no more than 2 electrons per orbital state, if electrons are in the same orbital then spin paired." I am not exactly sure what this means, I understand spin states but the part with the amount of electrons an orbital can have confuses me.

Christine Honda 2I
Posts: 116
Joined: Sat Sep 14, 2019 12:17 am

Re: Pauli Exclusion Principle

Postby Christine Honda 2I » Sat Oct 26, 2019 11:39 pm

The spins of two electrons are said to be paired if one is ↑ and the other ↓. Paired spins are denoted ↑↓, and electrons with paired spins have spin magnetic quantum numbers of opposite signs. No two electrons in an atom can have the same set of four quantum numbers.

Amanda Lin 2I
Posts: 101
Joined: Sat Aug 17, 2019 12:15 am

Re: Pauli Exclusion Principle

Postby Amanda Lin 2I » Sat Oct 26, 2019 11:43 pm

The s sublevel has 1 orbital, so it can have a max of 2 e-. The p sublevel has 3 orbitals, so it can have a max of 6 e-. The d sublevel has 5 orbitals, so it can have a max of 10 e-. The f sublevel has 7 orbitals, so it can have a max of 14 e-.

Jasmine Kim 1L
Posts: 71
Joined: Fri Aug 02, 2019 12:16 am

Re: Pauli Exclusion Principle

Postby Jasmine Kim 1L » Sun Oct 27, 2019 4:02 pm

I don't think we really need to know why an orbital can have up to 2 electrons, simply that it does.


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