Characteristics of the element
| Symbol: Ra |
| Name: Radium |
| Latin name: Radium |
| Atomic number: 88 |
| Atomic mass: 226 |
| Melting point: 700 (°C) |
| Boiling point: 1737 (°C) |
| Density 5 (g/cm 3 ) |
| Electronegativity: 0,97 |
| Oxidation number: II |
| Number of neutrons: 138 |
| Crystal structure: Cubic |
| Chemical serie: Alkaline earth metals |
| Color: silver |
| Electron configuration: 2-8-18-32-18-8-2 |
| Year of discovery:: 1898 |
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Update: 26.11.25
Update: 26.11.25