| name | Francium |
| latin | Francium |
| french | Francium |
| german | Francium |
| symbol | Fr |
| proton number | 87 |
| atomic weight | [223] |
| Pauling electronegativity | 0.7 |
| electronic configuration | [Rn] 7s1 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p67s1 |
| melting point | 300 K, 27°C, 80°F |
| boiling point | - |
| group | 1 |
| period | 7 |
| state (by 20°C) | solid |
| oxidation states | +1 |
| Year of discovery | Discoverer |
| 1939 | Marguerite Perey |