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Zinc
Co - Cobalt - TRANSITION METAL
Synthetic
Radioactive
Liquid
Gaseous
Electronic configuration diagram
| Name | Cobalt |
| Number | 27 |
| Atomic | 58.933194 |
| Symbol | Co |
| Fusion | 1495 |
| Boiling | 2870 |
| Density | 8.86 |
| Period | 4 |
| Group | 9 |
| Discovery | 1735 Brandt |
| Abundance | 25 |
| Radius | 1.7 |
| Electronegativity | 1.88 |
| Ionization | 7.881 |
| Number of isotopes | 14 |
| Electronic configuration | [Ar] 3d7 4s2 |
| Oxidation states | -1,1,2,3,4,5 |
| Electron by energy level | 2,8,15,2 |
| Mineral | Hardness | Density | Formula |
| Ahlfeldite | 2.00 / 2.50 | 3.37 | NiSeO3·2H2O |
| Allabogdanite | 5.00 / 6.00 | 7.11 | (Fe,Ni)2P |
| Alloclasite | 5.00 / 5.00 | 6.17 | CoAsS |
| Andreyivanovite | FeCrP | ||
| Aplowite | 3.00 / 3.00 | 2.33 | CoSO4·4H2O |
| Arhbarite | Cu2MgAsO4(OH)3 | ||
| Asbolane | 6.00 / 6.00 | Mn4+(O,OH)2·(Co,Ni,Mg,Ca)x(OH)2x·nH2O | |
| Bieberite | 2.00 / 2.00 | 1.90 | CoSO4·7H2O |
| Boothite | 2.00 / 2.50 | 2.10 | CuSO4·7H2O |
| Bornhardtite | 4.00 / 4.00 | Co2+Co3+2Se4 | |
| Bouazzerite | 2.81 | Bi6(Mg,Co)11Fe14(AsO4)18O12(OH)4·86H2O | |
| Burgessite | 3.00 / 3.00 | 2.93 | Co2(H2O)4(AsO3OH)2·H2O |
| Carminite | 3.50 / 3.50 | 5.03 | PbFe3+2(AsO4)2(OH)2 |
| Carrollite | 4.50 / 5.50 | 4.50 | CuCo2S4 |
| Cattierite | 4.50 / 4.50 | 4.80 | CoS2 |
| Clinosafflorite | 4.50 / 5.00 | 7.46 | CoAs2 |
| Cobaltarthurite | 3.50 / 4.00 | 3.22 | CoFe3+2(AsO4)2(OH)2·4H2O |
| Cobaltaustinite | 4.50 / 4.50 | 4.00 | CaCoAsO4(OH) |
| Cobaltite | 5.50 / 5.50 | 6.33 | CoAsS |
| Cobaltkieserite | 2.00 / 3.00 | 3.28 | CoSO4·H2O |
| Cobaltkoritnigite | 2.00 / 3.00 | 3.44 | Co(AsO3OH)·H2O |
| Cobaltlotharmeyerite | 4.50 / 4.50 | CaCo2(AsO4)2·2H2O | |
| Cobaltneustädtelite | 4.50 / 4.50 | 5.81 | Bi2Fe3+(Co,Fe3+)(AsO4)2(O,OH)4 |
| Cobaltoblödite | 2.50 / 2.50 | 2.35 | Na2Co(SO4)2·4H2O |
| Cobaltogordaite | NaCo4(SO4)(OH)6Cl·6H2O | ||
| Cobaltomenite | 2.00 / 2.50 | 3.39 | CoSe4+O3·2H2O |
| Cobaltpentlandite | 4.00 / 5.00 | 5.22 | Co9S8 |
| Cobalttsumcorite | 4.50 / 4.50 | 5.31 | PbCo2(AsO4)2·2H2O |
| Cobaltzippeite | 5.00 / 5.50 | 4.30 | Co(UO2)2(SO4)O2·3.5H2O |
| Cochromite | 7.00 / 7.00 | 5.22 | CoCr2O4 |
| Cohenite | 5.50 / 6.00 | 7.20 | Fe3C |
| Comblainite | 2.00 / 2.00 | 3.05 | Ni4Co3+2CO3(OH)12·3H2O |
| Costibite | 6.00 / 6.00 | 6.89 | CoSbS |
| Erythrite | 1.50 / 2.00 | 3.06 | Co3(AsO4)2·8H2O |
| Ferroskutterudite | 6.00 / 6.50 | FeAs3 | |
| Fletcherite | 5.00 / 5.00 | 4.00 | CuNi2S4 |
| Freboldite | 2.50 / 3.00 | 7.00 | CoSe |
| Gillardite | 3.00 / 3.00 | Cu3NiCl2(OH)6 | |
| Glaucodot | 5.00 / 5.00 | 5.90 | Co0.5Fe0.5AsS |
| Guarinoite | 1.50 / 2.00 | 2.80 | Zn6SO4(OH)10·5H2O |
| Hastite | 6.00 / 6.00 | 7.22 | CoSe2 |
| Heterogenite | 3.00 / 5.00 | 4.13 | Co3+O(OH) |
| Hloušekite | 2.00 / 3.00 | 3.30 | (Ni,Co)Cu4(AsO4)2(AsO3OH)2·9H2O |
| Jaipurite | 5.45 | CoS | |
| Jamborite | 2.67 | Ni2+1-xCo3+x(OH)2-x(SO4)x·nH2O where [x=1/3; n=(1-x)] | |
| Jolliffeite | 6.00 / 6.50 | 7.10 | NiAsSe |
| Julienite | 1.65 | Na2Co(SCN)4·8H2O | |
| Karpenkoite | Co3(V2O7)(OH)2·2H2O | ||
| Kieftite | 5.00 / 5.50 | 7.20 | CoSb3 |
| Kolwezite | 4.00 / 4.00 | 3.97 | CuCoCO3(OH)2 |
| Krettnichite | 4.50 / 4.50 | 4.50 | PbMn3+2(VO4)2(OH)2 |
| Langisite | 6.00 / 6.50 | 8.17 | CoAs |
| Leverettite | 3.00 / 3.00 | 3.71 | Cu3CoCl2(OH)6 |
| Linnaeite | 4.50 / 5.50 | 4.80 | Co3S4 |
| Magnesiopascoite | 2.50 / 2.50 | 2.43 | Ca2MgV5+10O28·16H2O |
| Martyite | 3.00 / 3.00 | 3.37 | Zn3V2O7(OH)2·2H2O |
| Mattagamite | 5.50 / 5.50 | 8.00 | CoTe2 |
| Melliniite | 8.00 / 8.50 | 7.88 | (Ni,Fe)4P |
| Metakirchheimerite | 2.00 / 2.50 | 3.20 | Co(UO2)2(AsO4)2·8H2O |
| Modderite | 4.00 / 4.00 | 8.00 | CoAs |
| Moorhouseite | 2.50 / 2.50 | 1.97 | CoSO4·6H2O |
| Neustädtelite | 4.50 / 4.50 | 5.81 | Bi2Fe3+(Fe3+,Co)2(AsO4)2(O,OH)4 |
| Nichromite | 6.00 / 6.50 | 5.24 | NiCr2O4 |
| Nickellotharmeyerite | 4.50 / 4.50 | 4.45 | CaNi2(AsO4)2·2H2O |
| Nickelschneebergite | 4.00 / 4.50 | 5.23 | BiNi2(AsO4)2(OH)·H2O |
| Nickelskutterudite | 5.50 / 6.00 | 6.50 | NiAs3-x |
| Oenite | 5.00 / 5.50 | 7.92 | CoSbAs |
| Oursinite | 3.00 / 3.50 | 3.67 | Co(UO2)2(SiO3OH)2·6H2O |
| Paganoite | 1.00 / 2.00 | NiBi3+OAsO4 | |
| Pakhomovskyite | 2.00 / 2.00 | 2.71 | Co3(PO4)2·8H2O |
| Paracostibite | 7.00 / 7.00 | 6.90 | CoSbS |
| Penroseite | 2.50 / 3.00 | 6.58 | NiSe2 |
| Petewilliamsite | 1.50 / 2.50 | 4.90 | (Ni,Co)30(As2O7)15 |
| Pradetite | 3.31 | CoCu4(AsO4)2(AsO3OH)2·9H2O | |
| Rappoldite | 4.50 / 4.50 | PbCo2(AsO4)2·2H2O | |
| Roselite | 3.50 / 3.50 | 3.69 | Ca2Co(AsO4)2·2H2O |
| Roselite- | 3.50 / 4.00 | 3.71 | Ca2Co(AsO4)2·2H2O |
| Safflorite | 4.00 / 5.00 | 6.90 | CoAs2 |
| Schneebergite | 4.00 / 4.50 | 5.28 | BiCo2(AsO4)2(OH)·H2O |
| Siegenite | 5.00 / 5.50 | 4.50 | CoNi2S4 |
| Skutterudite | 5.50 / 6.00 | 6.10 | CoAs3-x |
| Smolyaninovite | 2.00 / 2.00 | Co3Fe3+2(AsO4)4·11H2O | |
| Spherocobaltite | 3.00 / 4.00 | 4.21 | CoCO3 |
| Stavelotite-(La) | 4.49 | La3Mn2+3Cu2+(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30 | |
| Sugakiite | 2.00 / 3.00 | Cu(Fe,Ni)8S8 | |
| Thérèsemagnanite | 1.50 / 2.00 | 2.52 | NaCo4(SO4)(OH)6Cl·6H2O |
| Trogtalite | 7.00 / 7.00 | 7.00 | CoSe2 |
| Tyrrellite | 3.50 / 3.50 | 6.00 | (Co,Cu,Ni)3Se4 |
| Villamanínite | 4.50 / 4.50 | 4.52 | CuS2 |
| Vozhminite | 4.50 / 5.00 | 6.20 | Ni4AsS2 |
| Wairauite | 5.00 / 5.00 | 8.00 | CoFe |
| Wendwilsonite | 3.00 / 4.00 | 3.52 | Ca2Mg(AsO4)2·2H2O |
| Westerveldite | 5.50 / 6.00 | 8.00 | FeAs |
| Willyamite | 5.50 / 5.50 | 6.76 | CoSbS |
| Wupatkiite | 1.50 / 2.00 | 1.87 | CoAl2(SO4)4·22H2O |
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