63
Eu
Europium
151.9641
2
8
18
25
8
2
| Property | Value |
|---|
| Atoomnummer | 63 |
| Atoomgewicht | 151.9641 amu |
| Element family | N/A |
| Elektronische configuratie | 1s22s22p63s23p63d104s24p64d105s25p66s24f7 |
| Stable and very long lived isotopes | 151Eu: 47.8%, 153Eu: 52.2% |
|
| Previous element | Samarium |
| Next element | Gadolinium |
| Dichtheid |
5.243 g/cm3 (STP) |
| Smelten | 822 °C |
| Kookpunt | 1597 °C |
| Covalente straal | 1.68 Å |
| Ionstraal | 0.947 Å |
| Metalic radius | 1.804 Å |
| Eerst ionisatiepotentiaal | 5.670 eV |
| Elektronenaffiniteit | 0.116 eV |
| Electronegativity | 1.2 |
| Discovery year | 1896 |
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