What are the basic properties of Thorium?
Thorium (symbol: Th) is a actinide with atomic number 90. Its atomic mass is 232.04 u, and it belongs to period 7 and group 3.
Thorium (Th) Properties and Facts
Element 90 - Actinide
What is the electron configuration of Thorium?
The electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 6s²
What are the physical properties of Thorium?
Melting point: 2023.0 K
Boiling point: 5061.0 K
Density: 11.7 g/cm³
What are the known isotopes of Thorium?
- Th-228: Half-life of 1.91 years
- Th-229: Half-life of 7340 years
- Th-230: Half-life of 75,380 years
- Th-231: Half-life of 25.52 hours
- Th-232: Half-life of 14.05 billion years
- Th-234: Half-life of 24.1 days
What is the biological role and occurrence of Thorium?
Biological role: No known biological role
Natural occurrence: Found in thorite and monazite