Terbium (Tb)
Terbium is used in green phosphors for displays and in solid-state devices.

Properties of Terbium
- Atomic number
- 65
- Category
- Lanthanide
- Atomic mass
- 158.93 u
- Electron configuration
- [Xe] 4f⁹ 6s²
- Melting point
- 1629 K (1355.85 °C)
- Boiling point
- 3503 K (3229.85 °C)
- Density
- 8.229 g/cm³
- Electronegativity (Pauling)
- 1.2
- Appearance
- Silvery-white metal
- Discovered by
- Carl Gustaf Mosander (1843)
Facts about Terbium
- Terbium is named after Ytterby, the same Swedish village as yttrium!
- Terbium creates the green color in smartphone and TV screens!
- Terbium is used in fuel cells that could power future cars!
- Terbium compounds glow bright green under UV light!