Vanadin

23
V
Grupp
5
Period
4
Block
d
Protoner
Electrons
Neutroner
23
23
28
Generella Egenskaper
Atomnummer
23
Atommassa
50,9415
Mass Number
51
Kategori
Övergångsmetaller
Färg
Silver
Radioaktiv
Nej
Named after Scandinavian goddess, Vanadis
Kristallstruktur
Rymdcentrerat kubisk
Historia
Vanadium was originally discovered by Andrés Manuel del Río in 1801.

In 1805, the French chemist Hippolyte Victor Collet-Descotils incorrectly declared that del Río's new element was only an impure sample of chromium.

In 1831, the Swedish chemist Nils Gabriel Sefström rediscovered the element in a new oxide he found while working with iron ores.

Later that same year, Friedrich Wöhler confirmed del Río's earlier work.
Elektroner per skal
2, 8, 11, 2
Elektronkonfiguration
[Ar] 3d3 4s2
V
Vanadium is mined mostly in South Africa, north-western China, and eastern Russia
Fysikaliska Egenskaper
Aggregationstillstånd
Fast
Densitet
6,11 g/cm3
Smältpunkt
2183,15 K | 1910 °C | 3470 °F
Kokpunkt
3680,15 K | 3407 °C | 6164,6 °F
Smältvärme
22,8 kJ/mol
Ångbildningsvärme
453 kJ/mol
Specifik värmekapacitet
0,489 J/g·K
Abundance in Earth's crust
0,019%
Abundance in Universe
0,0001%
Vanadium
Bildkrediter: Images-of-elements
Vanadium crystals made by electrolysis
CAS Number
7440-62-2
PubChem CID Number
23990
Atomära Egenskaper
Atomradie
134 pm
Kovalent radie
153 pm
Elektronegativitet
1,63 (Paulingskalan)
Jonisationspotential
6,8281 eV
Molvolym
8,78 cm3/mol
Värmeledningsförmåga
0,307 W/cm·K
Oxidationstillstånd
-1, 1, 2, 3, 4, 5
Applications
Vanadium is used as an additive in steel to strengthen and protect against corrosion.

Titanium-aluminum-vanadium alloy is used in jet engines and for high-speed aircraft.

Vanadium foil is used in cladding titanium to steel.

Vanadium pentoxide is used in ceramics and as a catalyst for the production of sulfuric acid.
All vanadium compounds should be considered toxic
Isotoper
Stabila isotoper
51V
Instabila isotoper
40V, 41V, 42V, 43V, 44V, 45V, 46V, 47V, 48V, 49V, 50V, 52V, 53V, 54V, 55V, 56V, 57V, 58V, 59V, 60V, 61V, 62V, 63V, 64V, 65V