Terbium (Tb) is a chemical element belonging to the category Inner transition metal, with atomic number 65 and atomic mass 158.9250 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Identity
- Name: Terbium
- Symbol: Tb
- Atomic number: 65
- Atomic mass: 158.9250 u
Position in the periodic table
- Group: 3
- Period: 6
- Category: Inner transition metal
Physico-chemical properties
- Standard state: Solid
- Melting point: Very high (800°C to 3500°C)
- Density: High
- Electron configuration: [Xe] 4f⁹ 6s²
Scientific description
Terbium is a chemical element with symbol Tb and atomic number 65. It belongs to the category of Inner transition metal and occupies group 3 and period 6. Its standard atomic mass is 158.9250 u.