What is the general valence-electron ground-state electron configuration for neutral alkali metals?

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27-10-2017
Chemistry

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What is the general valence-electron ground-state electron configuration for neutral alkali metals?

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Edufirst Edufirst · Answer 1 · 2017-11-06T22:03:30+01:00

The ground state is the state lowest energy and that is the state of the ordinary configurations.

Alkali metals are the group 1 of the periodic table. All the alkali metals have 1 electron in their valence shell.

The configurations of the alkali metals are:

Li: [He] 2s

Na: [Ne] 3s

K: [Ar] 4s

Rb: [Kr] 5s

Cs: [Xe] 6s

Fr: [Rn] 7s.

As you see the electron configurations of the alkaly metals is the confiuration of the previous noble gas plus one electron that occupies the next s orbital.