Symbol	Tb	Atomic radius: pm	176	Fusion: kJ/Mole	10.15
Name	Terbium	Ionic radius: pm	(+3)118	Boiling point: °C	3230
Atomic number	65	Electron affinity	-	Melting point: °C	1356
Atomic weight	158.9	1st  ion potential	5.86	Specific Heat Cap: J/(g K)	0.18
Classification	Trans metal	Natural form	Solid	Thermal Cond: W/(cm K)	0.11
Configuration	[Xe]4f96s2	Crystal structure	Hex	Electrical Cond	0.00889
Oxidation states	3,4	Density	8.23	Abundance: mg/kg-crust	1.2
Electronegativity	-	Vaporization: kJ/Mole	391.0
Terbium was discovered in 1843 by Carl Gustaf Mosander, but its existence was not confirmed for about 30 years.  Pure compounds were not prepared until 1905.			Uses - aloys, color TV's