Chromium — Cr

The chemical element Chromium is an element of type Transition metal with the symbol Cr. It has an atomic mass of 51.9961 u and an electronic configuration of [Ar] 3d5 4s1.
Synthétique Radioactif Liquide Gaz

1857°
2482°
51.9961
24
-2
-1
1
2
3
4
5
6
Cr
2
8
13
1
[Ar] 3d5 4s1
1.66
6.7665
Electronic configuration diagram
Chromium
characteristics
Atomic number
24
Atomic mass
51.9961
Symbol
Cr
Melting point
1857
Boiling point
2482
Density
7.15
Period
4
Group
6
Discovery
1797 Vauquelin
Abundance
102
Radius
1.9
Electronegativity
1.66
Ionization
6.7665
Isotope
9
Electronic configuration
[Ar] 3d5 4s1
Oxidation state
-2,-1,1,2,3,4,5,6
Electron
2,8,13,1
Chromium is a chemical element that is found in the metal group of the periodic table of elements, symbolized by the symbol Cr and having an atomic number of 24. It is a metallic element that has interesting properties. chromium is a hard but relatively flexible metal. It has good ductility and is very resistant to corrosion. It has a metallic white color and a characteristic gloss. chromium is a ductile and malleable metal that is often used in alloys with other metals to give them corrosion resistance and durability. It is also used for its ability to produce brilliant color and heat resistant coatings. chromium is widely used for its resistance to corrosion and abrasion. It is commonly used for making pipes, tanks, refrigerators, stoves, ovens and vehicles. It is also used to make automotive components, medical instruments and electronic devices. Chromate complexes are also used as colorants and anti-corrosives for industrial coatings.

Minerals containing Chromium

first name Hardness Density Chemical formula
Andreyivanovite — 0.00 FeCrP
Ankangite — 4.44 Ba(Ti,V3+,Cr)8O16
Ardennite-(V) — 3.55 Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6
Barbertonite — 2.10 Mg6Cr2(CO3)(OH)16·4H2O
Batisivite — 4.62 BaTi6(V,Cr)8Si2O29
Bentorite — 2.03 Ca6Cr2(SO4)3(OH)12·26H2O
Bouazzerite — 2.81 Bi6(Mg,Co)11Fe14(AsO4)18O12(OH)4·86H2O
Bracewellite — 4.45 CrO(OH)
Brezinaite — 4.12 Cr3S4
Bushmakinite — 6.22 Pb2Al(PO4)(VO4)(OH)
Carlosruizite — 3.42 K3Na2Na3Mg5(IO3)6(SeO4)6·6H2O
Carlsbergite — 5.90 CrN
Carmichaelite — 4.13 (Ti,Cr,Fe)(O,OH)2
Cassedanneite — 6.00 Pb5(VO4)2(CrO4)2·H2O
Caswellsilverite — 3.21 NaCrS2
Chromatite — 3.14 CaCr6+O4
Chrombismite — 9.80 Bi16CrO27
Chromceladonite — 2.90 KMgCrSi4O10(OH)2
Chromferide — 6.69 Fe1.5Cr0.2
Chromio-pargasite — 3.12 NaCa2(Mg4Cr)(Si6Al2)O22(OH)2
Chromite — 4.50 Fe2+Cr2O4
Chromium — 7.20 Cr
Chromium diopside — 3.30 (Ca,Cr)MgSi2O6
Chromium-dravite — 0.00 NaMg3Cr6(Si6O18)(BO3)3(OH)3OH
Chromo-alumino-povondraite — 3.23 NaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O
Chromomphacite — 0.00 (Ca,Na)(Mg,Cr,Al)Si2O6
Chromphyllite — 2.88 KCr2(Si3Al)O10(OH)2
Chromschieffelinite — 5.89 Pb10Te6+6O20(OH)14(CrO4)·5H2O
Cochromite — 5.22 CoCr2O4
Crichtonite — 4.46 Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Crocoite — 5.90 PbCrO4
Cronusite — 2.51 Ca0.2CrS2·2H2O
Cuprokalininite — 4.16 CuCr2S4
Daubréelite — 3.81 FeCr2S4
Davidite-(Ce) — 4.42 Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Davidite-(La) — 4.42 La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
Deanesmithite — 8.00 Hg1+2Hg2+3S2OCrO4
Dessauite-(Y) — 4.68 Sr(Y,U,Mn)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Dietzeite — 3.62 Ca2(IO3)2CrO4·H2O
Dissakisite-(La) — 3.79 CaLaMgAl2(Si2O7)(SiO4)O(OH)
Dukeite — 7.17 Bi3+24Cr6+8O57(OH)6·3H2O
Edoylerite — 7.00 Hg2+3(Cr6+O4)S2
Embreyite — 6.45 Pb5(CrO4)2(PO4)2·H2O
Eskolaite — 5.18 Cr2O3
Ferchromide — 6.00 Cr1.5Fe0.2
Ferrohögbomite-2N2S — 0.00 (Fe,Mg,Zn,Al)3(Al,Ti,Fe)8O15(OH)
Florensovite — 4.00 Cu1+(Cr3+1.5Sb5+0.5)S4
Fornacite — 6.27 CuPb2(CrO4)(AsO4)(OH)
George-ericksenite — 3.04 Na6CaMg(IO3)6(CrO4)2·12H2O
Georgerobinsonite — 0.00 Pb4(CrO4)2(OH)2FCl
Grimaldiite — 4.11 CrO(OH)
Guyanaite — 4.53 CrO(OH)
Hapkeite — 0.00 Fe2Si
Hashemite — 4.59 BaCr6+O4
Hawthorneite — 5.00 BaMgTi3Cr4Fe2+2Fe3+2O19
Heideite — 4.10 (Fe,Cr)1.15(Ti,Fe)2S4
Hemihedrite — 6.42 Pb10Zn(CrO4)6(SiO4)2F2
Iquiqueite — 2.05 K3Na4Mg(CrO4)B24O39(OH)·12H2O
Iranite — 5.80 Pb10Cu(CrO4)6(SiO4)2(OH)2
Isovite — 7.40 (Cr,Fe)23C6
Jade — 3.00 Ca2(Mg,Fe)5Si8O22(OH)2
Joegoldsteinite — 3.71 MnCr2S4
Kalininite — 0.00 ZnCr2S4
Kassite — 3.42 CaTi2O4(OH)2
Keilite — 0.00 FeS
Khristovite-(Ce) — 4.05 CaCeMgMn2+Al(Si2O7)(SiO4)(OH)F
Knorringite — 3.76 Mg3Cr2(SiO4)3
Kosmochlor — 3.60 NaCrSi2O6
Krinovite — 3.38 Na4(Mg8Cr3+4)O4[Si12O36]
Lakargiite — 4.59 CaZrO3
Lindsleyite — 4.63 (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38
Lópezite — 2.69 K2Cr2O7
Loveringite — 4.41 (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38
Macquartite — 5.49 Cu2Pb7(CrO4)4(SiO4)2(OH)2
Magnesiochromite — 4.20 MgCr3+2O4
Magnesiosadanagaite — 3.00 NaCa2[Mg3(Fe3+,Al)2](Si5Al3)O22(OH)2
Manganochromite — 4.86 Mn2+Cr2O4
Mapiquiroite — 0.00 (Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38
Mariinskite — 4.25 BeCr2O4
Mathiasite — 4.60 (K,Ba,Sr)(Zr,Fe)(Mg,Fe)2(Ti,Cr,Fe)18O38
Mcconnellite — 5.49 Cu1+CrO2
Molybdofornacite — 6.60 CuPb2MoO4AsO4(OH)
Mongshanite — 0.00 (Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12
Mountkeithite — 2.12 Mg11Fe3+3(SO4)3.5(OH)24·11H2O
Murchisite — 4.22 Cr5S6
Natalyite — 3.55 NaV3+Si2O6
Nichromite — 5.24 NiCr2O4
Olkhonskite — 4.48 Cr2Ti3O9
Oxy-chromium-dravite — 3.30 NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O
Painite — 4.00 CaZrAl9O15(BO3)
Petterdite — 3.97 PbCr2(CO3)2(OH)4·H2O
Phoenicochroite — 7.01 Pb2O(CrO4)
Polyakovite-(Ce) — 4.75 (Ce,Ca)4MgCr2(Ti,Nb)2Si4O22
Putnisite — 2.23 SrCa4Cr3+8(CO3)8SO4(OH)16·25H2O
Qusongite — 15.84 WC
Redingtonite — 1.76 Fe2+Cr2(SO4)4·22H2O
Redledgeite — 3.72 Ba(Ti4+6Cr3+2)O16
Reynoldsite — 6.57 Pb2Mn4+2O5(CrO4)
Rilandite — 0.00 Cr3+6SiO11·5H2O(?)
Santanaite — 9.16 Pb11CrO16
Schöllhornite — 2.70 Na0.3CrS2·H2O
Schreibersite — 7.00 (Fe,Ni,Cr)3P
Schreyerite — 4.00 V3+2Ti4+3O9
Senaite — 5.30 Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
Shuiskite — 3.24 Ca2MgCr2(SiO4)(Si2O7)(OH)2·H2O
Stichtite — 2.20 Mg6Cr2CO3(OH)16·4H2O
Tarapacáite — 2.74 K2CrO4
Tongbaite — 6.00 Cr3C2
Uvarovite — 3.40 Ca3Cr2(SiO4)3
Vanadio-oxy-chromium-dravite — 3.30 NaV3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O
Vauquelinite — 6.00 CuPb2(CrO4)(PO4)(OH)
Verbierite — 0.00 BeCr3+2TiO6
Volkonskoite — 2.00 Ca0.3(Cr,Mg)2(Si,Al)4O10(OH)2·4H2O
Vuorelainenite — 4.64 Mn2+V3+2O4
Warwickite — 3.36 (Mg,Ti,Fe,Cr,Al)2O(BO3)
Wattersite — 8.91 Hg1+4Hg2+O2(CrO4)
Woodallite — 2.06 Mg6Cr2(OH)16Cl2·4H2O
Xieite — 5.34 FeCr2O4
Yarlongite — 7.19 Cr4Fe4NiC4
Yedlinite — 5.85 Pb6CrCl6(O,OH,H2O)8
Yimengite — 4.34 K(Cr,Ti,Fe,Mg)12O19
Zhanghengite — 8.00 CuZn
Zincochromite — 5.00 ZnCr2O4
Zoltaiite — 4.83 BaV4+2V3+12Si2O27

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