How do you write the electron configuration of scandium?

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How do you write the electron configuration of scandium?

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Answer 1 · 2016-11-27T09:57:46

#Sc, Z=21#

Explanation:

#1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^1#

We account for 21 electrons. The valence orbitals may have different ordering (i.e. #3d^(1)4s^2#) but this really doesn't matter so much. Scandium metal commonly forms #Sc^(3+)# ions.

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How do you write the electron configuration of scandium?

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