Metal and Alloys

What is chromium 2?


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2011-04-26 18:00:39
2011-04-26 18:00:39

Cr2+ is a divalent cation of chromium; ex.: chromium in chromium diiodide, CrI2.

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It was a question for Chromium Sulfite not SulfideChromium - Cr2+Sulfite - SO32-Chromium is +2 and Sulfite is -2 = CrSO3

Chromium has three valences: 2, 3, and 6.

The symbol of the chromium(II) ion is Cr(2+).

Chromium is a supplement that has been shown to lower hemoglobin A1C levels in people who have Type 2 diabetes. The difference between chromium picolinate and chromium polynicotinate is that chromium picolinate is made of chromium and picolinic acid whereas chromium polynicotinate is made of chromium and niacin.

+2The overall oxidation state of a compound equals 0. The oxidation state of oxygen is -2. So the oxidation state of the chromium is +2. (+2 + (-2) = 0

Cr(OH)2 is Chromium II Hydroxide

This formula is for chromium acetate.

Chromium II phosphate is Cr3(PO4)2

The valence electrons in Chromium are the 2 filling the 4s orbital.

The oxidation number of chromium varies from +2 to +6.

CrCO3 because carbonate has a 2- charge and here chromium has a 2+ charge

Chromium(II) nitrate: Cr(NO3)2Chromium(III) nitrate: Cr(NO3)3

The compound is Chromium(III) Oxide. Chromium is 3+, since the compound has to have a charge equal to 0. Since there is 2 chromium atoms each chromium atom must have a charge of 3+ to balance out the 3(2-) charges of each oxygen atom; 2x+3(-2)=0, transpose for x(chromium), (in case you need the working out).

Chromium has several valence states, only one of which is Chromium III. States 2, 3, and 6 are most common but 1, 4, and 5 are possible. Total chromium means the amount of chromium in all valence states.

The chemical formula of chromium (II) chlorate is Cr(ClO3)2.

Chromium has four oxidation states: 2, 3, 4, and 6.Iodine has one, and it's -1.There will be a iodide for each oxidation state of chromium.CrI2 Chromium (II) iodideCrI3 Chromium (III) iodideCrI4 Chromium (IV) iodideCrI6 Chromium (VI) iodide

CrO2this is the incorrect formula. For Chromium II oxide the formula is actually CrO without the 2. The reason for this is simple. the II after chromium indicates that it has a charge of +2, and the oxygen, we know is in group 16, has a charge of -2. The formula CrO2 is actually the formula for chromium IV oxide>

Chromium has 25 known isotopes, 2 isomers, 3 of which are non-radioactive.

Chromium has four oxidation states: 2, 3, 4, and 6. Chlorine has one, and it's -1. There will be a chloride for each oxidation state of chromium. Here they are: CrCl2 Chromium (II) chloride CrCl3 Chromium (III) chloride CrCl4 Chromium (IV) chloride CrCl6 Chromium (VI) chloride

CrO has chromium in the 2+ oxidation state. Remember that oxygen is nearly always in the 2- oxidation state, and that must be balanced out in a compound.

The configuration of Chromium is [Ar] 3d5 4s1 The configuration of Chromium 2+ is [Ar] 3d4 The configuration of Chromium 3+ is [Ar] 3d3

Some chromium compounds: chromium bromides, chromium chlorides, chromium fluorides, chromium iodides, potassium dichromate, sodium chromate, chromium oxide, chromium sulfide, etc.

Chromium fluorides are: Chromium difluoride: CrF2 Chromium trifluoride: CrF3 Chromium tetrafluoride: CrF4 Chromium pentafluoride: CrF5 Chromium hexafluoride: CrF6

There are a number of possible formulae, depending upon the valency (charge) of the chromium atom, which can be anything from 2 to 6, but is usually 2 or 6 thus Chromium Cyanide is generally either Cr2+(CN)-2 or Cr6+(CN)-6

Chromium oxide may refer to:Chromium(II) oxide, CrOChromium(III) oxide, Cr2O3Chromium dioxide (chromium(IV) oxide), CrO2Chromium trioxide (chromium(VI) oxide), CrO3

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