Atomic NumberAtomic Number of Rhenium
Atomic Number of Rhenium is 75.
Chemical symbol for Rhenium is Re. Number of protons in Rhenium is 75. Atomic weight of Rhenium is 186.207 u or g/mol. Melting point of Rhenium is 3180 °C and its the boiling point is 5627 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Rhenium
Rhenium is a rare silvery metal, quite strong and the one which has the highest melting point among metals. It has got its name after the word the Rhine in Latin. This metal has no biological role and it occurs on our planet very rarely, not on its natural form but only in compounds with other chemical elements. Rhenium is used in alloys with other metals to produce very strong steels which can be used in special types of industries. In particular, the applications include X-ray machines and oven parts, turbine parts, parts of electrical devices, and so on.
Properties of Rhenium Element
| Atomic Number (Z) | 75 |
|---|---|
| Atomic Symbol | Re |
| Group | 7 |
| Period | 6 |
| Atomic Weight | 186.207 u |
| Density | 21.02 g/cm3 |
| Melting Point (K) | 3459 K |
| Melting Point (℃) | 3180 °C |
| Boiling Point (K) | 5869 K |
| Boiling Point (℃) | 5627 °C |
| Heat Capacity | 0.137 J/g · K |
| Abundance | 7×10−4 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Transition metal |
| Electronegativity (Pauling) χ | 1.9 |
| Ionization Energy (eV) | 7.8335 |
| Atomic Radius | 135pm |
| Covalent Radius | 159pm |
| Valence Electrons | 2 |
| Year of Discovery | 1925 |
| Discoverer | Noddack, Tacke and Berg |