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W - Volfram - ÖVERGÅNGSMETALL
Elektroniskt konfigurationsschema
| Efternamn | Volfram |
| Atomnummer | 74 |
| Atomisk massa | 183.84 |
| Symbol | W |
| Fusionspunkt | 3407 |
| Kokpunkt | 5927 |
| Densitet | 19.25 |
| Period | 6 |
| Grupp | 6 |
| Upptäckt | 1783 J. and F. d'Elhuyar |
| Överflöd | 1.3 |
| Radie | 2 |
| Elektronnegativitet | 2.36 |
| Jonisering | 7.864 |
| Isotopnummer | 22 |
| Elektronisk konfiguration | [Xe] 4f14 5d4 6s2 |
| Oxidationstillstånd | -2,-1,1,2,3,4,5,6 |
| Elektron efter energinivå | 2,8,18,32,12,2 |
| Mineral- | Hårdhet | Densitet | Formel |
| Alumotungstite | (H2O,Ca)x(W,Al)2(O,OH)6·nH2O | ||
| Anthoinite | 1.00 / 1.00 | 4.80 | AlWO3(OH)3 |
| Baotite | 6.00 / 6.00 | 4.42 | Ba4(Ti,Nb,W)8O16(SiO3)4Cl |
| Billwiseite | 5.00 / 5.00 | 6.33 | Sb3+5Nb3WO18 |
| Catamarcaite | 3.50 / 3.50 | 4.89 | Cu6GeWS8 |
| Cuprotungstite | 4.00 / 5.00 | 7.06 | Cu2+3(WO4)2(OH)2 |
| Ekplexite | 1.00 / 1.00 | 3.63 | (Nb,Mo,W)S2·(Mg1-xAlx)(OH)2+x |
| Ferberite | 4.50 / 4.50 | 7.50 | Fe2+WO4 |
| Ferritungstite | 5.02 | (W,Fe3+)2(O,OH)6·n(H2O,K,Ca,Na) | |
| Hexamolybdenum | 11.90 | (Mo,Ru,Fe,Ir,Os) | |
| Huanzalaite | MgWO4 | ||
| Hübnerite | 4.50 / 4.50 | 7.20 | Mn2+WO4 |
| Hydrokenoelsmoreite | 3.00 / 3.00 | 2W2O6(H2O) | |
| Hydroroméite | (Ca,Mn)(Sb,W,As)2O6·4.2H2O | ||
| Hydrotungstite | 2.00 / 2.00 | 4.60 | WO2(OH)2·H2O |
| Jixianite | 3.00 / 3.00 | 6.04 | (Pb)2(W,Fe3+)2(O,OH)7 |
| Johnsenite-(Ce) | 5.00 / 6.00 | 3.20 | Na12Ce3Ca6Mn3Zr3WSi25O73(CO3)(OH)2 |
| Khomyakovite | 5.00 / 6.00 | 3.14 | Na12Ca6Sr3Fe3WZr3(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Kiddcreekite | 4.00 / 4.00 | 4.00 | Cu6WSnS8 |
| Koragoite | 4.00 / 5.00 | 4.70 | Mn2+2Mn3+Nb2(Nb,Ta)3W2O20 |
| Maikainite | 4.00 / 4.00 | 4.45 | Cu10Fe3MoGe3S16 |
| Manganokhomyakovite | 5.00 / 6.00 | 3.13 | Na12Ca6Sr3Mn2+3WZr3(Si25O73)(O,OH,H2O)3(Cl,OH)2 |
| Meymacite | 3.94 | WO3·2H2O | |
| Mpororoite | 4.00 | Al2O(WO4)2·6H2O | |
| Ophirite | 2.00 / 2.00 | 4.06 | Ca2Mg4[Zn2Mn3+2(H2O)2(Fe3+W9O34)2]·46H2O |
| Ovamboite | 3.50 / 3.50 | 4.74 | Cu10Fe3WGe3S16 |
| Paraniite-(Y) | 4.00 / 5.00 | (Ca,Y,Dy)2Y(WO4)2AsO4 | |
| Phyllotungstite | 2.00 / 2.00 | 5.26 | HCaFe3+3(WO4)6·10H2O |
| Pinalite | 7.00 | Pb3(WO4)OCl2 | |
| Pittongite | 2.00 / 3.00 | 5.72 | (Na,H2O)0.7(W,Fe3+)(O,OH)3 |
| Plumbobetafite | 4.50 / 5.50 | 4.64 | (Pb,U,Ca)2(Ti,Nb)2(O,OH,F)7 |
| Qitianlingite | 5.50 / 5.50 | 6.42 | Fe2+2Nb2W6+O10 |
| Qusongite | 9.50 / 9.50 | 15.84 | WC |
| Rankachite | 2.50 / 2.50 | 4.50 | Ca0.5(V4+,V5+)(W6+,Fe3+)2O8(OH)·2H2O |
| Raspite | 2.50 / 3.00 | 8.47 | PbWO4 |
| Russellite | 3.50 / 3.50 | 7.35 | Bi2WO6 |
| Samarskite-(Yb) | 5.00 / 6.00 | 7.03 | YbNbO4 |
| Sanmartinite | 4.00 / 4.50 | 6.70 | ZnWO4 |
| Scheelite | 4.00 / 5.00 | 5.90 | CaWO4 |
| Stolzite | 2.50 / 3.00 | 7.90 | PbWO4 |
| Tewite | K2(Te1.50.5)2W5O19 | ||
| Tungsten | W | ||
| Tungstenite | 2.50 / 2.50 | 7.40 | WS2 |
| Tungstibite | 2.00 / 2.00 | 6.69 | Sb2WO6 |
| Tungstite | 2.50 / 2.50 | 5.50 | WO3·H2O |
| Uranotungstite | 2.00 / 2.00 | 4.27 | Fe(UO2)2WO4(OH)4·12H2O |
| Welinite | 4.00 / 4.00 | 4.00 | (Mn4+,W)(Mn2+,Mg)(SiO4)(O,OH)3 |
| Yttrotungstite-(Ce) | 1.00 / 1.00 | 5.96 | CeW2O6(OH)3 |
| Yttrotungstite-(Y) | 1.00 / 1.00 | 5.96 | Y(W,Fe,Si,Al,Ti)2(O,OH,H2O)9 |
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