Question

Write the electronic configuration of potassium whose atomic number is 19.​

Answer 1

Explanation:

This is the electron configuration of Potassium K # 19

There are 2 electrons in the first shell

There are 8 electrons in the second shell

There are 8 electrons in the third shell

leaving only 1 electron in the fourth and valence shell.

This results in ionized potassium almost always having a charge of

K

+

:

K

→

K

+

+

e

−

Answer 2

Potassium electron configuration will be

➠ ${1s}^{2} {2s}^{2} {2p}^{6} {3p}^{6} {4s}^{1}$