19K
Potassium
Alkali metal
Properties of Potassium
- Atomic number (Z)
- 19
- Symbol
- K
- Name
- Potassium
- Atomic mass
- 39.098 u
- Period
- 4
- Group
- 1
- Family
- Alkali metals
- Classification
- Alkali metal
- Electron configuration
- [Ar] 4s¹
About Potassium
Potassium is a chemical element with symbol K and atomic number 19 (atomic mass of about 39.098 u). It is classified as a alkali metal on the periodic table.
On the periodic table, Potassium is located in period 4, in group 1, belonging to the alkali metals family. An element's position reveals trends in its properties, such as atomic radius, electronegativity and metallic character.
The electron configuration of Potassium is [Ar] 4s¹, which determines how it forms chemical bonds and takes part in reactions.