Potassium
Potassium (K) is a chemical element belonging to the category Alkali metal, with atomic number 19 and atomic mass 39.0983 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Identity
- Name: Potassium
- Symbol: K
- Atomic number: 19
- Atomic mass: 39.0983 u
Position in the periodic table
- Group: 1
- Period: 4
- Block: s-block
- Category: Alkali metal
Physico-chemical properties
- Standard state: Solid
- Melting point: 63.5°C (336.7 K)
- Boiling point: 759°C (1032 K)
- Density: 0.862 g/cm³
- Electron configuration: [Ar] 4s¹
Scientific description
Potassium is a chemical element with symbol K and atomic number 19. It is an alkali metal located in group 1, period 4 of the periodic table and belongs to the s-block. Its standard atomic mass is 39.0983 u.
KODO: I1