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.
The chemical formula of chromium iodate is Cr(IO3)3.
CrI3 would be the formula
CrI3
CrI2
CrI3
Chromium(II) Iodide
Depends on if you have iron (II) iodide or iron (III) iodide. iron (II) iodide is FeI2, while iron (III) iodide is FeI3.
Phosphorus tri-iodide refers to Phosphorus(III) Iodide, with formula PI3
Formula: IrI3
CrI3
Chromium (III) Iodide
Chromium(II) Iodide
Depends on if you have iron (II) iodide or iron (III) iodide. iron (II) iodide is FeI2, while iron (III) iodide is FeI3.
Phosphorus tri-iodide refers to Phosphorus(III) Iodide, with formula PI3
Formula: CoI3
Formula: IrI3
Formula: AuI3
Chromium(III) phosphide has the formula CrP.
Under still milder conditions, chromium metal reacts with the halogens fluorine, F2, chlorine, Cl2, bromine, Br2, and iodine, I2, to form the corresponding trihalideschromium(III) fluoride, CrF3, chromium(III) chloride, CrCl3, chromium(III) bromide, CrBr3, or chromium(III) iodide, CrI3.
the chemical formula for chromim(II) fluoride is CrF2
The chemical formula of chromium(III) arsenate is CrAsO4.