Valence Electrons in d orbital

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Briana Perez 3A
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Joined: Fri Sep 28, 2018 12:23 am

Valence Electrons in d orbital

Postby Briana Perez 3A » Mon Oct 29, 2018 10:23 pm

How do you determine the number of valence electrons in the d block? Does it have to be either one or two since?
Last edited by Briana Perez 3A on Tue Oct 30, 2018 6:10 pm, edited 1 time in total.

Gary Qiao 1D
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

Re: Valence Electrons in d orbital

Postby Gary Qiao 1D » Mon Oct 29, 2018 10:32 pm

Valence electrons refer to the outermost electrons in the outermost shells, so usually when an atom has a d orbital, you would just count the electrons in the s and p shells. If you are referring to how many electrons can be in each orbital of the d shell, then yes there can be one or two electrons in each orbital.

Sierra Cheslick 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:27 am

Re: Valence Electrons in d orbital

Postby Sierra Cheslick 2B » Mon Oct 29, 2018 10:36 pm

The number of valence electrons in the d orbital is determined by the element. However, it's important to remember that the 3d orbital has a lower energy level than the 4s orbital, and therefore is filled first. For example, Ni would have an electron configuration of [Ar]3d^10 rather than [Ar]3d^8 4s^2.


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