Radon
Atomic number
86
Atomic weight
222
Discovery (year)
1900
Atomic radius (A)
2.4
Melting point (
o
C)
-71
Boiling point (
o
C)
-61.9
Density (g/cm
3
)
9.96
Specific heat (cal/g
o
C)
@
Ionization potential (eV)
10.748
Electron Affinity (eV)
0
