Monster name: Thor
Thorium
- Atomic number
- 90
- Symbol
- Th
- Series
- actinides
- Group
- Ac
- Period
- 7
- State of matter
- solid
- radioactive
Thorium is named after the nordic god Thor. Even though the element is radioactive, it has a half life of 14 billion years (in its most important isotope) – therefore more stable than uranium. It was formerly used for gas mantles in lamps.
