75
186.207 u
Re
Rhenium
Transition Metal
Atomic Structure
Physical State
Group
7
Period
6
Block
d
Electron Configuration
[Xe] 4f¹⁴ 5d⁵ 6s²
Physical Properties
Atomic Mass:
186.207 u
Electronegativity:
1.9
Atomic Radius:
188 pm
Ionization Energy:
7.88 eV
Density:
21.02 g/cm³
Melting Point:
3459 K
Boiling Point:
5869 K
Historical Information
Discovered By:
Masataka Ogawa
Year Discovered:
1925