TbZ =  65

From the Swedish "Ytterby", meaning "outer village"
(AM) Atomic Mass 158.9254  amu    Oxidation States +3
   (BP) Boiling Point 3041  °C    (MP) Melting Point 1360  °C
   (ρ) Density 8.25  g/cm3    Crystal Structure Hexagonal
   ( χ ) Electronegativity 1.2    (AR) Atomic Radius 1.59  Å
   Physical State Solid (C) Heat Capacity 0.182  J/g °C
Electronic-Config [Xe]  4f9  6s2     (I1) First Ionization E 565.4  kJ/mol
   (ΔHvap) Heat of Vaporization 293  kJ/mol     (ΔHfus) Heat of Fusion 10.15  kJ/mol
   Year of Discovery 1843    Location of Discovery Sweden
(E°) Standard Potential Tb3+⇔ Tb (-2.280 V)
Stable isotopes  159Tb
Discovered/Synthesized by Carl Gustaf Mosander
Natural Source The mineral/ore bastnasite, monazite, loparite
Common Uses Phosphors in tvs & trichromatic fluorescent lamps, computer disks, magnetostrictive materials
Other Info Does not tarnish rapidly in air
Soft enough to be cut with a knife.
Previous Element
Next Element
Back to Table
Common Properties
Home Page