๐Ÿ  Home โ˜ข๏ธ Incidents โšก Energy ๐Ÿ“… Timeline ๐Ÿญ Plants ๐ŸŒ Countries
๐ŸŒ Language:
Continue as Guest Join Server
โ† ChemHub
K

Potassium

Atomic number 19 ยท alkali metal ยท Period 4, Group 1

โš›๏ธ
19Atomic Number
โš–๏ธ
39.098Atomic Mass (u)
๐Ÿท๏ธ
alkali metalCategory
๐Ÿ”ฌ
DavyDiscovered by

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 temperature๐Ÿชจ 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.