Identity
- Name: Barium
- Symbol: Ba
- Atomic number: 56
- Atomic mass: 137.3270 u
Position in the periodic table
- Group: 2
- Period: 6
- Category: Alkaline earth metal
Physico-chemical properties
- Standard state: Solid
- Melting point: Medium (650°C to 1280°C)
- Density: Medium
- Electron configuration: [Xe] 6s²
Scientific description
Barium is a chemical element with symbol Ba and atomic number 56. It belongs to the alkaline earth metals. Its standard atomic mass is 137.3270 u.