| Property | Value |
|---|---|
| Atomic number | 75 |
| Atomic weight | 186.2071 amu |
| Element family | Transition metals |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 185Re: 37.40% |
| Previous element | Tungsten |
| Next element | Osmium |
| Density | 21.02 g/cm3 (STP) |
| Melting | 3180 °C |
| Boiling | 5627 °C |
| Covalent radius | 1.31 Å |
| Ionic radius | 0.56 Å |
| Metallic radius | 1.37 Å |
| First ionization potential | 7.877 eV |
| Electron affinity | 0.060 eV |
| Electronegativity | 1.9 |
| Discovery year | 1925 |
| Sample reactions |
|---|
| Re + Br2 = ReBr3 |
Rhenium is an element number 75 from transition metals family. Its symbol is Re. Rhenium atomic weight is 186.2071 amu. Re stable and long lived isotopes are 185Re: 37.40%. Rhenium electronic configuration is 1s22s22p63s23p63d104s24p64d104f145s25p66s25d5. Rhenium density is 21.02 g/cm3 (STP). Rhenium melting point is 3180 °C. Rhenium boiling point is 5627 °C. Rhenium covalent radius is 1.31 Å. Rhenium ionic radius is 0.56 Å. Rhenium covalent radius is 1.37 Å. Rhenium first ionization potential is 7.877 eV. Rhenium first ionization potential is 0.060 eV. Rhenium electronegativity by Pauling scale is 1.9. Rhenium was discovered in 1925.
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