90
Th
Thorium
232.038062
2
8
18
32
18
10
2
8
18
32
18
10
2
Property | Value |
---|---|
Atoomnummer | 90 |
Atoomgewicht | 232.038062 amu |
Element family | Actinoids |
Elektronische configuratie | 1s2 |
Stable and very long lived isotopes | Geen |
Previous element | Actinium |
Next element | Protactinium |
Dichtheid | 11.72 g/cm3 (STP) |
Smelten | 1755 °C |
Kookpunt | 4787 °C |
Covalente straal | 1.75 Å |
Ionstraal | 0.972 Å |
Metalic radius | 1.79 Å |
Eerst ionisatiepotentiaal | 6.084 eV |
Elektronenaffiniteit | 0.608 eV |
Electronegativity | 1.3 |
Discovery year | 1829 |
Sample compounds |
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Th(SO4)2 |

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