| Symbol | Uuu | Atomic radius: pm | - | Fusion: kJ/Mole | - |
| Name | Unununium | Ionic radius: pm | - | Boiling point: °C | - |
| Atomic number | 111 | Electron affinity | - | Melting point: °C | - |
| Atomic weight | 272.0 | 1st ion potential | - | Specific Heat Cap: J/(g K) | - |
| Classification | Trans metal | Natural form | - | Thermal Cond: W/(cm K) | - |
| Configuration | Synthetic | Crystal structure | - | Electrical Cond | - |
| Oxidation states | - | Density | - | Abundance: mg/kg-crust | Synthetic |
| Electronegativity | - | Vaporization: kJ/Mole | - | ||
| Unununium was discovered in 1994 by S. Hofmann, V. Ninov, F.P. Hessberger, P. Armbruster, H. Folger, G. Münzenberg, H.J. Schött and others at Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany. It was produced in reactions between bismuth-209 and nickel-64. | Uses - no known uses | ||||