| Symbol | Uun | Atomic radius: pm | - | Fusion: kJ/Mole | - |
| Name | Ununnilium | Ionic radius: pm | - | Boiling point: °C | - |
| Atomic number | 110 | Electron affinity | - | Melting point: °C | - |
| Atomic weight | 271.0 | 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 | - | ||
| Ununnilium 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 by fusing a nickel and a lead atom together. | Uses - no known uses | ||||