Rhenium (Re)
Atomic number
75
Mass number
186
Electronegativity
1.9
Covalent radius
1.28
Atomic radius
1.97
Melting point
3453.0
Boiling point
5869.0
Density
21.0
Specific heat
0.13
Electrical conductivity
0.0542e6
Thermal conductivity
0.479