| Property | Value |
|---|---|
| Atomic number | 58 |
| Atomic weight | 140.1161 amu |
| Element family | N/A |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 136Ce: 0.19%, 138Ce: 0.25%, 140Ce: 88.48% |
| Previous element | Lanthanum |
| Next element | Praseodymium |
| Density | 6.77 g/cm3 (STP) |
| Melting | 798 °C |
| Boiling | 3257 °C |
| Covalent radius | 1.63 Å |
| Ionic radius | 1.034 Å |
| Metallic radius | 1.818 Å |
| First ionization potential | 5.539 eV |
| Electron affinity | 0.570 eV |
| Electronegativity | 1.12 |
| Discovery year | 1803 |
Cerium is an element number 58 from n/a family. Its symbol is Ce. Cerium atomic weight is 140.1161 amu. Ce stable and long lived isotopes are 136Ce: 0.19%, 138Ce: 0.25%, 140Ce: 88.48%. Cerium electronic configuration is 1s22s22p63s23p63d104s24p64d105s25p66s25d14f1. Sample compounds that contain Cerium are CeO2, [Ce(NH3)6][FeCl4]3, CeB6, Ce(SO4)2, Ce2(SO4)3, Ce(IO3)4.
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