Am
Americium
Element 95 · Actinide · Period 7, Group 9
Solid · Discovered 1944
Atomic Properties
| Atomic Number | 95 |
| Atomic Mass | 243.06138u |
| Electron Configuration | [Rn]7s2 5f7 |
| Electronegativity | 1.3Pauling |
| Atomic Radius | 244pm |
| Ionization Energy | 5.993eV |
| Oxidation States | +6, +5, +4, +3 |
Physical Properties
| Standard State | Solid |
| Melting Point | 1449K |
| Boiling Point | 2284K |
| Density | 13.69g/cm³ |
| Group Block | Actinide |
| Year Discovered | 1944 |