Niobiy
41
Nb
Guruh
5
Davr
5
Block
d
Protonlar
Elektronlar
Neytronlar
41
41
52
General Properties
Atom raqami
41
Atom massasi
92,90638
Mass Number
93
Turkum
Oʻtish metallar
Ranggi
Gray
Radioaktivlik
Yoʻq
Named after Niobe, the daughter of Tantalu
Crystal Structure
Body Centered Cubic
Tarix
Niobium was discovered by the English chemist Charles Hatchett in 1801 and named the new element columbium.
In 1846, German chemist Henrich Rose independently discovered the element and named it niobium.
The metal was first isolated by Swedish scientist Christian Wilhelm Blomstrand in 1864 who reduced the chloride by heating it in a hydrogen atmosphere.
In 1846, German chemist Henrich Rose independently discovered the element and named it niobium.
The metal was first isolated by Swedish scientist Christian Wilhelm Blomstrand in 1864 who reduced the chloride by heating it in a hydrogen atmosphere.
Electrons per shell
2, 8, 18, 12, 1
Elektron konfiguratsiyasi
[Kr] 4d4 5s1
Brazil is the leading producer of niobium
Physical Properties
Phase
Qattiq modda
Zichlik
8,57 g/cm3
Erish harorati
2750,15 K | 2477 °C | 4490,6 °F
Qaynash harorati
5017,15 K | 4744 °C | 8571,2 °F
Heat of Fusion
26,8 kJ/mol
Heat of Vaporization
690 kJ/mol
Solishtirma issiqlik sigʻimi
0,265 J/g·K
Abundance in Earth's crust
0,0017%
Abundance in Universe
2×10-7%
CAS Number
7440-03-1
PubChem CID Number
23936
Atomic Properties
Atom radiusi
146 pm
Kovalentlik radiusi
164 pm
Elektrmanfiylik
1,6 (Poling boʻyicha)
Ionization Potential
6,7589 eV
Molyar hajm
10,87 cm3/mol
Issiqlik oʻtkazuvchanlik
0,537 W/cm·K
Oksidlanish darajasi
-1, 2, 3, 4, 5
Applications
Niobium is used in arc-welding rods for stabilized grades of stainless steel.
Niobium alloys are strong and are often used in pipeline construction.
The metal is used in superalloys for jet engines and heat resistant equipment.
Niobium is found in many medical devices such as pacemakers.
Niobium alloys are strong and are often used in pipeline construction.
The metal is used in superalloys for jet engines and heat resistant equipment.
Niobium is found in many medical devices such as pacemakers.
Some niobium compounds are highly toxic
Izotoplar
Barqaror izotoplar
93NbBeqaror izotoplar
81Nb, 82Nb, 83Nb, 84Nb, 85Nb, 86Nb, 87Nb, 88Nb, 89Nb, 90Nb, 91Nb, 92Nb, 94Nb, 95Nb, 96Nb, 97Nb, 98Nb, 99Nb, 100Nb, 101Nb, 102Nb, 103Nb, 104Nb, 105Nb, 106Nb, 107Nb, 108Nb, 109Nb, 110Nb, 111Nb, 112Nb, 113Nb