Name: Ununpentium (temporary)
Number of Energy Levels: 7 (Predicted)
Electrons on the outer energy level: 5 (Predicted)
Atomic number: 115
Atomic Mass: 289 Amu (Atomic Mass Units) (Predicted)
Density: 13.5 g/cm3 (Predicted)
Classification: Transition Metal (Predicted)
Ununpentium was discovered in 2003 at Joint Institute for Nuclear Research in Russia and Lawrence Livermore National Laboratory. Ununpentium was named according to IUPAC systematic element name and it is a temporary name. Its melting point is predicted to be at 670 K (400 °C, 750 °F) and its boiling point is predicted to be at 1400 K (1100 °C, 2000 °F).