unpaired electrons  [ENDORSED]

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Belle Calforda3f
Posts: 67
Joined: Fri Sep 29, 2017 7:07 am

unpaired electrons

Postby Belle Calforda3f » Mon Nov 06, 2017 10:28 am

Can someone explain why for example: [kr]4d105s2 has no unpaired electrons?

Lorie Seuylemezian-2K
Posts: 62
Joined: Fri Sep 29, 2017 7:04 am

Re: unpaired electrons

Postby Lorie Seuylemezian-2K » Mon Nov 06, 2017 11:07 am

Determining whether or not electrons are paired can be done using an Aufbau diagram if every electron has a pair for example 2 arrows on every line than all electrons are paired! An easy trick is if the number of electrons in each sub shell is at the maximum then all electrons are paired.

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Re: unpaired electrons  [ENDORSED]

Postby Chem_Mod » Mon Nov 06, 2017 2:17 pm

The answer above is correct. Once you draw out the diagram, you'll see that the d-orbital electrons will not be paired, meaning there will be 5 unpaired electrons.

Clarissa Molina 1D
Posts: 55
Joined: Fri Sep 29, 2017 7:04 am

Re: unpaired electrons

Postby Clarissa Molina 1D » Fri Dec 08, 2017 1:07 am

How can you tell if a an electron configuration represents the ground state or an excited state of an atom?

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