Valence Electrons

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Valence Electrons

Postby Mulin_Li_2J » Sun Nov 03, 2019 11:46 pm

A general definition of valence electrons is number of electrons existed in the out-most shell of the atom. But does this definition really apply to transitional metals? Because if it does, Cu will technically have 11 valence electrons.

Eugene Chung 3F
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Re: Valence Electrons

Postby Eugene Chung 3F » Sun Nov 03, 2019 11:51 pm

Writing out the electron configuration for Cu, there is one valence electron: [Ar] 3d10 4s1

Jillian C 4C
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Re: Valence Electrons

Postby Jillian C 4C » Mon Nov 04, 2019 12:00 am

Since the outermost shell of Cu only has one electron in 4s1, then there is only 1 valence electron.

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