Basic Information

Name: Terbium 
Symbol: Tb 
Atomic Number: 65 
Atomic Mass: 158.92534 amu 
Melting Point: 1360.0 °C (1633.15 K, 2480.0 °F) 
Boiling Point: 3041.0 °C (3314.15 K, 5505.8 °F) 
Number of Protons/Electrons: 65 
Number of Neutrons: 94 
Classification: Rare Earth 
Crystal Structure: Hexagonal 
Density @ 293 K: 8.27 g/cm3 
Color: silverish
Date of Discovery: 1843 
Discoverer: Carl Mosander 
Name Origin: Ytterby (a town in Sweden) 
Uses: in color TV's 
Obtained From: with other rare earths