What are the basic properties of Radium?
Radium (symbol: Ra) is a alkaline earth metal with atomic number 88. Its atomic mass is 226.0 u, and it belongs to period 7 and group 2.
Radium (Ra) Properties and Facts
Element 88 - Alkaline Earth Metal
What is the electron configuration of Radium?
The electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 6s²
What are the physical properties of Radium?
Melting point: 973.0 K
Boiling point: 2010.0 K
Density: 5.5 g/cm³
What are the known isotopes of Radium?
- Ra-223: Half-life of 11.4 days
- Ra-224: Half-life of 3.6 days
- Ra-225: Half-life of 14.9 days
- Ra-226: Half-life of 1600 years
- Ra-228: Half-life of 5.8 years
What is the biological role and occurrence of Radium?
Biological role: Highly radioactive and toxic
Natural occurrence: Found in uranium and thorium ores