Th
Thorium
Actinide
Thorium is a weakly radioactive metallic element that is about three times more abundant than uranium. It has potential as an alternative nuclear fuel.
Key Facts
Atomic Number
90
Atomic Weight
232.04
State
Solid
Half-life
14.05 billion years (Th-232)
Discovered
1828
Jöns Jacob Berzelius
Overview
Description
Thorium is a weakly radioactive metallic element that is about three times more abundant than uranium. It has potential as an alternative nuclear fuel.
Discovery
Thorium was discovered in 1828 by Jöns Jacob Berzelius.