Americium |
| Symbol | Am |
|---|---|
| Latin name | Americium |
| Atomic number | 95 |
| Period | 7 |
| Element category | Inner transition elements |
| Relative atomic mass | 243.0614 |
| Group | III.B |
| Electronegativity | 1.3 |
| Oxidation numbers | 3, 4, 5, 6 |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f7 6d0 7s2 |
| Density [g/cm3] | 13.67 |
| State | Solid |
| Melting point [°C] | 1170 |
| Boiling point [°C] | 2607 |
| Thermal conductivity [W m-1K-1] | 10 |
| Discovery | 1944 |
| 1.st ionization energy [eV] | 5.993 |
| Stable isotopes | 0 |
| Unstable isotopes | 13 |