Radium
Radium is a chemical element which has the symbol Ra and atomic number 88. Its appearance is almost pure white, but it readily oxidizes on exposure to air, turning black. Radium is an alkaline earth metal that is found in trace amounts in uranium ores. It is highly radioactive.
| Atomic number: | 88 |
| Symbol: | Ra |
| Atomic weight: | 226 |
| Boiling Point (C): | -- |
| Melting Point (C): | 700 |
| Density: | 5 |
| heatVapor: | 27.4 |
| heatFusion: | 2.4 |
| Electrical Conductivity: | -- |
| Thermal Conductivity: | -- |
| Specific Heat Capacity: | -- |
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