The ground state electron configuration of scandium is ________. express your answer in condensed form, in order of increasing orbital energy. for example, [he]2s22p2 would be entered as [he]2s^22p^2.

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19-04-2018
Chemistry

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The ground state electron configuration of scandium is ________. express your answer in condensed form, in order of increasing orbital energy. for example, [he]2s22p2 would be entered as [he]2s^22p^2.

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transitionstate transitionstate · Answer 1 · 2018-04-28T13:58:01+02:00

Scandium is a d-Block element with atomic number 21. So, it has 21 protons and 21 electrons in neutral state. Electronic Configuration for Sc is,

1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹
Also we know that,
Electronic configuration of Argon with atomic number 18 is,

[Ar] = 1s², 2s², 2p⁶, 3s², 3p⁶

Now comparing both configurations,

[Ar], 4s², 3d¹

This is condensed electronic configuration of Scandium.