ଟଙ୍ଗ୍‌ଷ୍ଟନ

ଉଇକିପିଡ଼ିଆ ରୁ
ସିଧାସଳଖ ଯିବେ ଦିଗବାରେଣିକୁ, ଖୋଜିବେ
Tungsten,  74W
Wolfram evaporated crystals and 1cm3 cube.jpg
ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକ tungsten, W
Appearance grayish white, lustrous
ଉଚ୍ଚାରଣ /ˈtʌŋstən/ tung-stən;
/ˈwʊlfrəm/ wuul-frəm
Tungsten in the periodic table
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
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 (other non-metal)
Bromine (halogen)
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 (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
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 (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
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)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Mo

W

Sg
tantalumtungstenrhenium
ପରମାଣୁ କ୍ରମାଙ୍କ (Z) 74
ଶ୍ରେଣୀ, ବ୍ଳକ group 6, d-block
ପର୍ଯ୍ୟାୟ period 6
ମୌଳିକ ପ୍ରକାର   transition metal
ମାନକ ପରମାଣବିକ ଓଜନ (Ar) 183.84
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ [Xe] 4f14 5d4 6s2[୧]
per shell
2, 8, 18, 32, 12, 2
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥା solid
ଗଳନାଙ୍କ 3695 K ​(3422 °C, ​6192 °F)
ସ୍ଫୁଟନାଙ୍କ 5828 K ​(5555 °C, ​10031 °F)
Density near r.t. 19.25 g/cm3
when liquid, at m.p. 17.6 g/cm3
Critical point 13892 K,  MPa
Heat of fusion 35.3 kJ/mol
Heat of 806.7 kJ/mol
Molar heat capacity 24.27 J/(mol·K)
 pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 3477 3773 4137 4579 5127 5823
Atomic properties
Oxidation states 6, 5, 4, 3, 2, 1, 0, −1, −2
(mildly acidic oxide)
Electronegativity Pauling scale: 2.36
Atomic radius empirical: 139 pm
Covalent radius 162±7 pm
Miscellanea
Crystal structure body-centered cubic (bcc)
Body-centered cubic crystal structure for tungsten
Speed of sound thin rod (annealed) 4620 m/s (at r.t.)
Thermal expansion 4.5 µm/(m·K) (at 25 °C)
Thermal conductivity 173 W/(m·K)
Electrical resistivity 52.8 n Ω·m (at 20 °C)
Magnetic ordering paramagnetic[୨]
Young's modulus 411 GPa
Shear modulus 161 GPa
Bulk modulus 310 GPa
Poisson ratio 0.28
Mohs hardness 7.5
Vickers hardness 3430 MPa
Brinell hardness 2570 MPa
CAS Number 7440-33-7
ଇତିହାସ
ଆବିଷ୍କାର Torbern Bergman (1781)
First isolation Juan José Elhuyar and Fausto Elhuyar (1783)
Most stable isotopes of tungsten
iso NA half-life DM DE (MeV) DP
180W 0.12% 1.8×1018 y α 2.516 176Hf
181W syn 121.2 d ε 0.188 181Ta
182W 26.50% >1.7×1020 y α 1.772 178Hf
183W 14.31% >8×1019 y α 1.680 179Hf
184W 30.64% >1.8×1020 y α 1.123 180Hf
185W syn 75.1 d β 0.433 185Re
186W 28.43% >4.1×1018 y α 1.656 182Hf
ββ - 186Os
| references

ଟଙ୍ଗ୍‌ଷ୍ଟନ (wolfram; ଓଲ୍‌ଫ୍ରାମ୍ ଭାବେ ବି ଜଣା) ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Wପରମାଣୁ କ୍ରମାଙ୍କ ୭୪ ଅଟେ ।

ଧର୍ମ[ସମ୍ପାଦନା]

ଭୌତିକ[ସମ୍ପାଦନା]

ରସାୟନିକ[ସମ୍ପାଦନା]

ସମସ୍ଥାନିକ[ସମ୍ପାଦନା]

ଉପସ୍ଥିତି[ସମ୍ପାଦନା]

ଗଠନ[ସମ୍ପାଦନା]

ଉତ୍ପାଦନ[ସମ୍ପାଦନା]

ବ୍ୟବହାର[ସମ୍ପାଦନା]

ଆହୁରି ଦେଖନ୍ତୁ[ସମ୍ପାଦନା]

ଆଧାର[ସମ୍ପାଦନା]

  1. "Why does Tungsten not 'Kick' up an electron from the s sublevel ?". Retrieved 2008-06-15. 
  2. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.

ବାହାର ଲିଙ୍କ[ସମ୍ପାଦନା]