| Francium, Fr | |
|---|---|
| Categories: | MetalNonferrous MetalPure Element |
| Material Notes: | Fr-223 is the isotope with the longest half-life (22 min). Very little property data is available. |
| Vendors: | No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material. |
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Export data to your CAD/FEA program| Chemical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Atomic Mass | 223 | 223 | Longest-Lived Isotope (1995) | ||
| Atomic Number | 87 | 87 | |||
| X-ray Absorption Edge | 0.12261 Å | 0.12261 Å | K | ||
| 0.66537 Å | 0.66537 Å | LI | |||
| 0.6929 Å | 0.6929 Å | LII | |||
| 0.82529 Å | 0.82529 Å | LIII | |||
| Electronegativity | 0.70 | 0.70 | Pauling | ||
| Ionic Radius | 1.80 Å | 1.80 Å | Crystal Ionic Radius for Valence +1 | ||
| Thermal Properties | Metric | English | Comments | ||
| Melting Point | 27.0 °C | 80.6 °F | |||
| Component Elements Properties | Metric | English | Comments | ||
| Francium, Fr | 100 % | 100 % | |||
| Descriptive Properties | |||||
| CAS Number | 7440-73-5 | ||||
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