Question

in potassium valence electron resides in which shell?​

Answer 1

Potassium electron configuration will be: 1s2,2s2,2p6,3s2,3p6,4s1

There is only 1 electron in the 4th energy level.

Potassium has 1 valency electron in the 4th energy level.

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Answer 2

Answer:

It is classified as an alkali metal. Potassium atoms have 19 electrons and 19 protons with one valence electron in the outer shell.