What are the basic properties of Francium?
Francium (symbol: Fr) is a alkali metal with atomic number 87. Its atomic mass is 223.0 u, and it belongs to period 7 and group 1.
Francium (Fr) Properties and Facts
Element 87 - Alkali Metal
What is the electron configuration of Francium?
The electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 6s¹
What are the physical properties of Francium?
Melting point: 300.0 K
Boiling point: 950.0 K
Density: None g/cm³
What are the known isotopes of Francium?
- Fr-223: Half-life of 22 minutes
- Fr-224: Half-life of 3.3 minutes
- Fr-225: Half-life of 4.0 minutes
- Fr-226: Half-life of 2.0 minutes
- Fr-227: Half-life of 21 seconds
What is the biological role and occurrence of Francium?
Biological role: Highly radioactive and toxic
Natural occurrence: Found in uranium and thorium ores