Ruthenium

Atomic number44
Atomic weight101.07
Discovery (year)1844
Atomic radius (A)1.33
Melting point (oC)2250
Boiling point (oC)3900
Density (g/cm3)12.06
Specific heat (cal/g oC)0.057
Ionization potential (eV)7.37
Electron Affinity (eV)1.1