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unpaired electrons

Posted: Mon Nov 06, 2017 10:28 am
by Belle Calforda3f
Can someone explain why for example: [kr]4d105s2 has no unpaired electrons?

Re: unpaired electrons

Posted: Mon Nov 06, 2017 11:07 am
by Lorie Seuylemezian-2K
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.

Re: unpaired electrons  [ENDORSED]

Posted: Mon Nov 06, 2017 2:17 pm
by Chem_Mod
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.

Re: unpaired electrons

Posted: Fri Dec 08, 2017 1:07 am
by Clarissa Molina 1D
How can you tell if a an electron configuration represents the ground state or an excited state of an atom?