19 K 39.098

Potassium

Category: Alkali metal | State: Solid

Atomic Properties

Atomic Number 19
Atomic Mass 39.098
Electronic Configuration [Ar] 4s¹

Periodic Table Placement

Group 1
Period 4
Block s-block

Physical Properties & Discovery

Melting Point 63.5°C
Boiling Point 759°C
Density 0.862 g/cm³
Discovered By Humphry Davy (1807)

Frequently Asked Questions about Potassium