88Ra
Radium
Alkaline earth metal
Properties of Radium
- Atomic number (Z)
- 88
- Symbol
- Ra
- Name
- Radium
- Atomic mass
- 226 u
- Period
- 7
- Group
- 2
- Family
- Alkaline earth metals
- Classification
- Alkaline earth metal
- Electron configuration
- [Rn] 7s²
About Radium
Radium is a chemical element with symbol Ra and atomic number 88 (atomic mass of about 226 u). It is classified as a alkaline earth metal on the periodic table.
On the periodic table, Radium is located in period 7, in group 2, belonging to the alkaline earth metals family. An element's position reveals trends in its properties, such as atomic radius, electronegativity and metallic character.
The electron configuration of Radium is [Rn] 7s², which determines how it forms chemical bonds and takes part in reactions.