What are the basic properties of Lawrencium?
Lawrencium (symbol: Lr) is a actinide with atomic number 103. Its atomic mass is 262.0 u, and it belongs to period 7 and group 3.
Lawrencium (Lr) Properties and Facts
Element 103 - Actinide
What is the electron configuration of Lawrencium?
The electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 6s²
What are the physical properties of Lawrencium?
Melting point: 1900.0 K
Boiling point: 1900.0 K
Density: 15.6 g/cm³
What are the known isotopes of Lawrencium?
- Lr-262: Half-life of 3.6 hours
- Lr-263: Half-life of 44 minutes
- Lr-264: Half-life of 11 hours
- Lr-265: Half-life of 10.5 hours
- Lr-266: Half-life of 11 hours
What is the biological role and occurrence of Lawrencium?
Biological role: Highly radioactive and toxic
Natural occurrence: Synthetic element