75 Re
Transition metal
Rhenium
Used in jet engine alloys.
Properties of Rhenium
- Atomic number (Z)
- 75
- Symbol
- Re
- Atomic mass
- 186.21 g/mol
- Category
- Transition metal
- Group
- 7
- Period
- 6
- Electron configuration
- [Xe] 4f¹⁴ 5d⁵ 6s²
- Electronegativity (Pauling)
- 1.9
- Atomic radius
- 188 pm
- First ionization energy
- 760 kJ/mol
- Melting point
- 3459 K (3185.8 °C)
- Boiling point
- 5869 K (5595.9 °C)
- Density
- 21.02 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1925