Tb

TERBIUM

Definition It occurs in gadolinite in minute quantities as white oxide known as 'terbia'.

Discovery 1843

Uses Lasr material, crystal stabilizer

Group of Elements Lanthanide(Solid)

Atomic Weight 158.92535

Oxidation State +3

Melting Point 1360

Boiling Point 3041

Density 8.25 g/cm3

Electronegativity 1.2