3Li
Lithium
Alkali metal
Properties of Lithium
- Atomic number (Z)
- 3
- Symbol
- Li
- Name
- Lithium
- Atomic mass
- 6.941 u
- Period
- 2
- Group
- 1
- Family
- Alkali metals
- Classification
- Alkali metal
- Electron configuration
- [He] 2s¹
About Lithium
Lithium is a chemical element with symbol Li and atomic number 3 (atomic mass of about 6.941 u). It is classified as a alkali metal on the periodic table.
On the periodic table, Lithium is located in period 2, 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 Lithium is [He] 2s¹, which determines how it forms chemical bonds and takes part in reactions.