Shell Structure
Crystal Structure
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| Element | Information |
| Atomic Number: | 87 |
| Symbol: | Fr |
| Name: | Francium |
| Name Origin: | Named for the nation of discovery, France |
| Type: | Alkaline Metal |
| Atomic Mass: | 223 |
| Melting Point: | 27 |
| Boiling Point: | 677 |
| Neutrons: | 136 |
| Density: | ? |
| Crystal Structure: | Cubic, body centered |
| Discovered: | 1939 |
| Discoverers: | Discovered by Mlle. Marguerite Perey (France). |
| Other Names: | |
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