Curium

Symbol | Cm
Latin name | Curium
Atomic number | 96
Period | 7
Element category | Inner transition elements
Relative atomic mass | 247.0704
Group | III.B
Oxidation numbers | 3, 4
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f7 6d1 7s2
Density [g/cm3] | 13.55
State | Solid
Melting point [°C] | 1340
Thermal conductivity [W m-1K-1] | 10
Discovery | 1944
1.st ionization energy [eV] | 6.02
Stable isotopes | 0
Unstable isotopes | 13