Terbium

Terbium
Properties
Atomic symbol	Tb
Atomic number	65
Classification	Metallic
Atomic mass	158.92535 amu
Other Information
Date of discovery	1843
Name of discoverer	Carl Gustaf Mosander
Name origin	Named for Ytterby, Sweden
Uses	Used in alloys, fuel cell stablizer and in lasers.
Obtained from	Found chiefly in monazite ore.