Re
Rhenium Symbol (Re)
Rhenium is element 75 of the periodic table. Copy its symbol Re and see its atomic weight, electron configuration and physical properties.
What does Re mean?
Re is the chemical symbol for rhenium, element number 75 in the periodic table. Rhenium is a transition metal in group 7, period 6. It is a solid at room temperature and was discovered in 1925.
Codes and properties
| Chemical symbol | Re |
|---|---|
| Atomic number (Z) | 75 |
| Atomic weight (PubChem) | 186.207 |
| Group / period | 7 / 6 |
| Element category | transition metal |
| Electron configuration | [Xe]6s² 4f¹⁴ 5d⁵ |
| State at 20 °C | Solid |
| Oxidation states | +7, +6, +4 |
| Electronegativity (Pauling) | 1.9 |
| Melting point | 3459 K (3185.85 °C) |
| Boiling point | 5869 K (5595.85 °C) |
| Density | 20.8 g/cm³ |
| Discovered | 1925 |
How to type Re
- Plain text: type
Re— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Re}in math mode, or use the mhchem package:\ce{Re}. - HTML:
Re; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for rhenium?
The chemical symbol for rhenium is Re.
What is the atomic number of rhenium?
Rhenium has atomic number 75, meaning each atom has 75 protons.
What is the electron configuration of rhenium?
The ground-state electron configuration of rhenium is [Xe]6s² 4f¹⁴ 5d⁵.
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Reference: Rhenium on PubChem (NIH)