Template:Infobox tungsten: Difference between revisions

From Vigyanwiki
(Created page with "{{Infobox element |number=74 |symbol=W |name=tungsten |alt name=wolfram, pronounced: {{IPAc-en|ˈ|w|ʊ|l|f|r|əm}} ({{respell|WUUL|frəm}}) |abundance= |abundance in earth's c...")
 
m (1 revision imported from alpha:Template:Infobox_tungsten)
 
(No difference)

Latest revision as of 10:13, 16 December 2022

Tungsten, 74W
Wolfram evaporated crystals and 1cm3 cube.jpg
Tungsten
उच्चारण/ˈtʌŋstən/ (TUNG-stən)
Alternative namewolfram, pronounced: /ˈwʊlfrəm/ (WUUL-frəm)
allotropesα-tungsten (common), β-tungsten
दिखावटgrayish white, lustrous
Standard atomic weight Ar°(W)
  • 183.84±0.01
  • 183.84±0.01 (abridged)[1]
Tungsten in the periodic table
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
Mo

W

Sg
tantalumtungstenrhenium
Atomic number (Z)74
समूहgroup 6
अवधिperiod 6
ब्लॉक  d-block
ऋणावेशित सूक्ष्म अणु का विन्यास[Xe] 4f14 5d4 6s2[2]
प्रति शेल इलेक्ट्रॉन2, 8, 18, 32, 12, 2
भौतिक गुण
Phase at STPsolid
गलनांक3695 K ​(3422 °C, ​6192 °F)
क्वथनांक6203 K ​(5930 °C, ​10706 °F)
Density (near r.t.)19.25 g/cm3
when liquid (at m.p.)17.6 g/cm3
संलयन की गर्मी52.31 kJ/mol[3][4]
Heat of vaporization774 kJ/mol
दाढ़ गर्मी क्षमता24.27 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 3477 3773 4137 4579 5127 5823
परमाणु गुण
ऑक्सीकरण राज्य−4, −2, −1, 0, +1, +2, +3, +4, +5, +6 (a mildly acidic oxide)
इलेक्ट्रोनगेटिविटीPauling scale: 2.36
Ionization energies
  • 1st: 770 kJ/mol
  • 2nd: 1700 kJ/mol
परमाणु का आधा घेराempirical: 139 pm
सहसंयोजक त्रिज्या162±7 pm
Color lines in a spectral range
Spectral lines of tungsten
अन्य गुण
प्राकृतिक घटनाprimordial
क्रिस्टल की संरचनाbody-centered cubic (bcc)
Body-centered cubic crystal structure for tungsten
Speed of sound thin rod4620 m/s (at r.t.) (annealed)
थर्मल विस्तार4.5 µm/(m⋅K) (at 25 °C)
ऊष्मीय चालकता173 W/(m⋅K)
विद्युत प्रतिरोधकता52.8 nΩ⋅m (at 20 °C)
चुंबकीय आदेशparamagnetic[5]
दाढ़ चुंबकीय संवेदनशीलता+59.0×10−6 cm3/mol (298 K)[6]
यंग मापांक411 GPa
कतरनी मापांक161 GPa
थोक मापांक310 GPa
पॉइसन अनुपात0.28
मोहन कठोरता7.5
विकर्स कठोरता3430–4600 MPa
ब्रिनेल हार्डनेस2000–4000 MPa
CAS नंबर7440-33-7
History
खोज और पहला अलगावJuan José Elhuyar and Fausto Elhuyar[7] (1783)
Named byTorbern Bergman (1781)
चिन्ह, प्रतीक"W": from Wolfram, originally from Middle High German wolf-rahm 'wolf's foam' describing the mineral wolframite[8]
Main isotopes of tungsten
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
180W 0.12% 1.8×1018 y α 176Hf
181W syn 121.2 d ε 181Ta
182W 26.50% stable
183W 14.31% stable
184W 30.64% stable
185W syn 75.1 d β 185Re
186W 28.43% stable
 Category: Tungsten
| references
  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Allotropes (demo)
Group (demo)
Period (demo)
Block (demo)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image