Question

How many unpaired electrons are in a potassium atom?

Answer 1

Got a Periodic Table?

Explanation:

For potassium, `Z=19`...and using the usual electronic configuration scheme..we get...

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^1`

...there is necessarily ONE UNPAIRED electron....the which is readily oxidized...