Vanadium

Symbol	V
Atomnummer	23
Gruppe	5 (Vanadiumgruppe)
Periode	4
Blok	d
Klassifikation	Overgangsmetal

Udseende	Blue-silver-grey metal
Farve	Sølv

Antal protoner	23 p+
Antal neutroner	28 n0
Antal elektroner	23 e-

Fra Wikipedia, den gratis encyklopædiVanadium (opkaldt efter Vanadis, bedre kendt som Freja fra den nordiske mytologi) er det 23. grundstof i det periodiske system, og har det kemiske symbol V: Under normale temperatur- og trykforhold optræder dette overgangsmetal som et sølvgråt, blødt og formbart metal.

Fase ved STP	Fast
Massefylde	6 g/cm3
Atommasse	50.9415 u

Smeltepunkt	2183 K 1909.85 °C 3469.73 °F
Kogepunkt	3680 K 3406.85 °C 6164.33 °F
Fordampningsvarme	446.7 kJ/mol

Elektronegativitet (Pauling Scale)	1.63
Elektronaffinitet	50.911 kJ/mol
Oxidationstrin	−3, −1, 0, +1, +2, +3, +4, +5 (an amphoteric oxide)
Ioniseringsenergier	650.9 kJ/mol 1414 kJ/mol 2830 kJ/mol 4507 kJ/mol 6298.7 kJ/mol 12363 kJ/mol 14530 kJ/mol 16730 kJ/mol 19860 kJ/mol 22240 kJ/mol 24670 kJ/mol 29730 kJ/mol 32446 kJ/mol 86450 kJ/mol 94170 kJ/mol 102300 kJ/mol 112700 kJ/mol 121600 kJ/mol 130700 kJ/mol 143400 kJ/mol 151440 kJ/mol 661050 kJ/mol 699144 kJ/mol

Elektronkonfiguration Kortfattet konfiguration	[Ar] 3d3 4s2
Elektronkonfiguration Fuld konfiguration	1s2 2s2 2p6 3s2 3p6 3d3 4s2
Elektronkonfigurationsdiagram	1s2 2s2 2p6 3s2 3p6 3d3 4s2
Elektroner pr. Skal	2, 8, 11, 2
Outer shell electrons	2
Valence electrons (incl. d)	5
Valency-elektroner	2,3,4,5
Bohrs atommodel	Figur: Skaldiagram af Vanadium (V) atom.
Orbital diagram	1s 2s 2p 3s 3p 3d 4s

Opdagelse og første isolation	Andrés Manuel del Río (1801)
Navngivet af	Nils Gabriel Sefström (1830)
Opdagelse af vanadium Spanish scientist Andrés Manuel del Río discovered compounds of vanadium in 1801 in Mexico by analyzing a new lead-bearing mineral he called "brown lead". Though he initially presumed its qualities were due to the presence of a new element, he was later erroneously convinced by French chemist Hippolyte Victor Collet-Descotils that the element was just chromium. Then in 1830, Nils Gabriel Sefström generated chlorides of vanadium, thus proving there was a new element, and named it "vanadium" after the Scandinavian goddess of beauty and fertility, Vanadís (Freyja). The name was based on the wide range of colors found in vanadium compounds. Del Rio's lead mineral was ultimately named vanadinite for its vanadium content. In 1867 Henry Enfield Roscoe obtained the pure element.

Original word	Vanadis
Language of origin	Norse
Name source	Mytologi
Meaning	“Vanadis (Freyja)”
Naming The name originated from 'Vanadis', the old Norse name for the Scandinavian goddess of of love and beauty (Freyja), because of the beautiful multicolored compounds formed by the metal.

CAS Number	7440-62-2
ChemSpider ID	22426
EC number	231-171-1
PubChem CID Number	23990