| Property | Value |
|---|---|
| Atoomnummer | 98 |
| Atoomgewicht | 251.0796 amu |
| Element family | Actinoids |
| Elektronische configuratie | 1s2 |
| Stable and very long lived isotopes | Geen |
| Previous element | Berkelium |
| Next element | Einsteinium |
| Dichtheid | 15.1 g/cm3 (STP) |
| Smelten | 900 °C |
| Kookpunt | 1470 °C |
| Ionstraal | 0.934 Å |
| Metalic radius | 1.86 Å |
| Eerst ionisatiepotentiaal | 6.301 eV |
| Elektronenaffiniteit | -1.010 eV |
| Electronegativity | 1.3 |
| Discovery year | 1950 |
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