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منځپانگې ته ورتلل
ويکيپېډيا
پلټنه

نايوبيوم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
(لهNiobium نه مخ گرځېدلی)
Niobium,  41Nb
A lump of gray shining crystals with hexagonal facetting
A lump of gray shining crystals with hexagonal facetting
عمومي خواص
Pronunciation/nˈbiəm/
ny-OH-bee-əm
Alternative namecolumbium
Appearancegray metallic, bluish when oxidized
Niobium پهدوراني جدول کې
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (unknown chemical properties)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
V

Nb

Ta
zirconiumniobiummolybdenum
اټومي شمیره(Z)41
گروپ,پیریودgroup 5,period 5
بلاکd-block
Element category transition metal
معياري اټومي وزن (Ar)کينډۍ:Val[۱]
Electron configuration[Kr] 4d4 5s1
Electrons per shell
2, 8, 18, 12, 1
فزیکي خواص
حالت(at STP)جامد
دويلې کيدو ټکى2750 K ​(2477 °C, ​4491 °F)
يشنا ټکی5017 K ​(4744 °C, ​8571 °F)
Density near r.t.8.57 g/cm3
Heat of fusion30 kJ/mol
Heat of vaporization689.9 kJ/mol
Molar heat capacity24.60 J/(mol·K)
Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)294232073524391043935013
اټومي خواص
Oxidation states5, 4, 3, 2, 1, −1, −3 ​(a mildlyacidic oxide)
ElectronegativityPauling scale: 1.6
Ionization energies
  • 1st: 652.1 kJ/mol
  • 2nd: 1380 kJ/mol
  • 3rd: 2416 kJ/mol
Atomic radiusempirical: 146 pm
Covalent radius164±6 pm
Miscellanea
Crystal structurebody-centered cubic (bcc)
Cubic body-centered crystal structure for niobium
Cubic body-centered crystal structure for niobium
Speed of sound thin rod3480 m/s (at 20 °C)
Thermal expansion7.3 µm/(m·K)
د تودوخې تېرېدنه53.7 W/(m·K)
Electrical resistivity152 nΩ·m (at 0 °C)
Magnetic orderingparamagnetic
Young's modulus105 GPa
Shear modulus38 GPa
Bulk modulus170 GPa
Poisson ratio0.40
Mohs hardness6.0
Vickers hardness870–1320 MPa
Brinell hardness735–2450 MPa
CAS Number7440-03-1
History
NamingafterNiobe in Greek mythology, daughter ofTantalus (tantalum)
DiscoveryCharles Hatchett (1801)
First isolationChristian Wilhelm Blomstrand (1864)
Recognized as a distinctelement byHeinrich Rose (1844)
Mainisotopes of niobium
آيسو­ټوپAbun­danceنیم ژوند(t1/2)Decay modePro­duct
90Nbsyn15 hβ+90Zr
91Nbsyn680 yε91Zr
91mNbsyn61 dIT91Nb

کينډۍ:Infobox element/isotopes decay2کينډۍ:Infobox element/isotopes decay2

93Nb100%stable
93mNbsyn16 yIT93Nb

کينډۍ:Infobox element/isotopes decay2کينډۍ:Infobox element/isotopes decay2

95mNbsyn4 dIT95Nb
96Nbsyn24 hβ96Mo
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| references | in Wikidata

نايوبيوم (پهانگرېزي:Niobium) لهکیمیاوي عناصرو څخه یو دی چې پهتناوبي جدول کې دNb سمبول او ۴۱اتمي شمېرې په وسیله ښودل شوی دی.

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  1. Meija, J.; Coplen, T. B. (2016)."Atomic weights of the elements 2013 (IUPAC Technical Report)".Pure Appl. Chem.88 (3): 265–91.doi:10.1515/pac-2015-0305.{{cite journal}}:Unknown parameter|displayauthors= ignored (|display-authors= suggested) (help)

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