Radium
Atomic number
88
Atomic weight
226
Discovery (year)
1898
Atomic radius (A)
2.2
Melting point (
o
C)
700
Boiling point (
o
C)
1137
Density (g/cm
3
)
6
Specific heat (cal/g
o
C)
@
Ionization potential (eV)
5.279
Electron Affinity (eV)
@
