Question

What is the electron configuration of potassium?

Answer 1

`1s^2,2s^2,2p^6,3s^2,3p^6,4s^1`

Answer 2

2,8,8,1

Explanation:

If you want to represent the subshells you can also write it in this way:
`1s^2 2s^2 2p^6 3s^2 3p^6 4s^1`
or simply, [Ar]`4s^1`