01 About Potassium
Symbol K comes from "Kalium." Radioactive potassium-40 is a natural source of radiation inside your body. Bananas contain enough K-40 to set off some radiation detectors.
02 Physical Properties
State at room temperature๐ชจ Solid
Melting point63.4 ยฐC
Boiling point759 ยฐC
Density0.862 g/cmยณ
Atomic mass39.098 u
Electron configuration2,8,8,1
Period / GroupPeriod 4, Group 1
BlockS-block
03 Discovery
Potassium was discovered in 1807 by Davy.