Question

What are the electron configurations of lithium, oxygen, nitrogen, and potassium?

Answer 1

•Lithium

Atomic number = 3

Electron configuration= 2, 1

Valency = +1

•Oxygen

Atomic number= 8

Electron configuration= 2, 6

Valency= -2

•Nitrogen

Atomic number= 7

Electron configuration= 2, 5

Valency= -3

•Potassium

Atomic number=19

Electron configuration=2,8,8,1

Valency= +1