75 · Re
Rhenium
Identified in 1925 by Noddack, Tacke, and Berg.
Identity
- Atomic number
- 75
- Symbol
- Re
- Canonical name
- Rhenium
- Category
- transition metal
- Group
- 7
- Period
- 6
- Block
- d
Properties
These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.
- Atomic mass
- 186.2071 u
- Electron configuration
- [Xe] 4f14 5d5 6s2
- Electrons per shell
- 2, 8, 18, 32, 13, 2
- Standard state
- solid
- Density
- 21.02 g/cm³
- Melting point
- 3,459 K
- Boiling point
- 5,869 K
- Electronegativity
- 1.9 Pauling
- First ionization energy
- 760 kJ/mol
- Electron affinity
- 5.8273 kJ/mol
History
Rhenium
Discovery · confirmed · 1925
Noddack, Tacke, and Berg identify rhenium. Their parallel masurium claim, for element 43, is not upheld.
Etymology
- Theme
- place
- Language
- latin
- Root
- Rhenus
- Meaning
- the Rhine
Scientists
Places and institutions
- Berlin — historical setting : Prussia, then Germany — present country : Germany
See also
Sources
- IUPAC, Periodic Table of the Elements
- Bowserinator, Periodic Table JSON. Compilation secondaire d’où viennent les grandeurs physiques importées (masse, densité, températures, énergies). Elles ne sont pas revérifiées une à une auprès du NIST ou de la CIAAW.
- John Emsley, Nature’s Building Blocks: An A–Z Guide to the Elements