Terbium (Tb)

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

Terbium-doped material erupting with intense electric green fluorescence under UV light
Video: Terbium-doped material erupting with intense electric green fluorescence under UV light

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!

Terbium videos

Back to the periodic table · Terbium on Wikipedia