Symbol: Tb

Atomic Number: 65

Atomic Weight: 158.924

Terbium (number 65, symbol Tb) is an earth metal and chemical element that can be extracted from minerals such as bastnaesite and monazite. It belongs to the group of lanthanides and was discovered in 1843 by Carl Mosander who also isolated erbium and lanthanum. He studied the mineral gadolinite which contains dysprosium, terbium, ytterbium, thulium, and yttrium, all of which being rare earth elements. Today the major mining sites are found in Australia, Brazil, China, Sri Lanka, India, and the United States. The largest site is found on the territory of Southern China.

Isotopes and Physical and Chemical Properties
Terbium is...Read More