Vanadium

23
V
Kumpulan
5
Kala
4
Blok
d
Proton
Elektron
Neutron
23
23
28
Ciri-Ciri Am
Nombor atom
23
Berat atom
50.9415
Nombor jisim
51
Kategori
Logam peralihan
Warna
Perak
Radioaktif
Tidak
Named after Scandinavian goddess, Vanadis
Struktur hablur
Pusat Badan Kubik
Sejarah
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.
Bilangan elektron per petala
2, 8, 11, 2
Konfigurasi elektron
[Ar] 3d3 4s2
V
Vanadium is mined mostly in South Africa, north-western China, and eastern Russia
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
6.11 g/cm3
Takat lebur
2183.15 K | 1910 °C | 3470 °F
Takat didih
3680.15 K | 3407 °C | 6164.6 °F
Haba pelakuran
22.8 kJ/mol
Haba pengewapan
453 kJ/mol
Muatan haba molar
0.489 J/g·K
Banyak pada kerak bumi
0.019%
Banyak pada alam semesta
0.0001%
Vanadium
Kredit imej: Images-of-elements
Vanadium crystals made by electrolysis
Nombor CAS
7440-62-2
PubChem CID Number
23990
Ciri-Ciri Atom
Jejari atom
134 pm
Jejari kovalen
153 pm
Keelektronegatifan
1.63 (Skala Pauling)
Kebolehan mengion
6.8281 eV
Isipadu atom
8.78 cm3/mol
Daya pengaliran terma
0.307 W/cm·K
Keadaan pengoksidaan
-1, 1, 2, 3, 4, 5
Aplikasi
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
Isotop
Isotop stabil
51V
Isotop tidak stabil
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