23 · V
Vanadium
Del Río’s 1801 claim was withdrawn. Identified by Sefström in 1830, metal isolated by Roscoe in 1867.
Identity
- Atomic number
- 23
- Symbol
- V
- Canonical name
- Vanadium
- Category
- transition metal
- Group
- 5
- Period
- 4
- Block
- d
- Former names
- érythronium
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
- 50.94151 u
- Electron configuration
- [Ar] 3d3 4s2
- Electrons per shell
- 2, 8, 11, 2
- Standard state
- solid
- Density
- 6 g/cm³
- Melting point
- 2,183 K
- Boiling point
- 3,680 K
- Electronegativity
- 1.63 Pauling
- First ionization energy
- 650.9 kJ/mol
- Electron affinity
- 50.911 kJ/mol
History
Erythronium, claim withdrawn
Discovery · disputed · 1801
Del Río describes a new metal in Mexico, then withdraws and takes it for chromium. The claim is not carried through to a stable identification.
Rediscovery
Identification · confirmed · 1830
Sefström identifies vanadium in Swedish cast iron.
Metal pure enough
Isolation · confirmed · 1867
Roscoe isolates vanadium metal. The 1830 identification was first about compounds.
Etymology
- Theme
- mythology
- Language
- norrois
- Root
- Vanadis
- Meaning
- Vanadis, a name of Freyja
Scientists
Places and institutions
- Mexico City — historical setting : New Spain — present country : Mexico
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