75Re186.21
Rhenium
Transition metalsHard, shiny metals that conduct heat and electricity well and often form coloured compounds.
[Xe] 4f¹⁴ 5d⁵ 6s²
- Atomic number
- 75
- Atomic mass
- 186.21
- Protons
- 75
- Neutrons
- 111 (most common)
- Electrons
- 75
- Shells
- 2, 8, 18, 32, 13, 2
- State at 25 °C
- Solid
- Position
- Group 7, period 6
Proton (+)Neutron (0)Electron (−)
Discovered byWalter Noddack, Ida Tacke and Otto Berg, 1925Walter Noddack, Ida Tacke and Otto Berg: 1 element
Named after the river Rhine. It was the last stable element to be discovered.
Did you know?
- It is one of the rarest elements in Earth's crust.
- It has one of the highest melting points of all elements.
Where it's found
- Molybdenite ore, in tiny amounts
What it's used for
- Jet engine superalloys
- Catalysts for making petrol
Try it
There's no safe home experiment for Rhenium. Explore it with the animated atom above instead.