There is no "formula, just the symbol Cr(VI) or CrVI.
CrO42−
Cr2+
The cation of chromium is Cr3+.
A chromium ion is not neutral. By definition an ion is not neutral. All atoms belong to an isotope, but that has nothing to do with whether the atom is ionized or not.
Cr2O3 is, Chromium (III) oxide or simply Chromium oxide.
This compound is the chromium phosphate.
Formula: CrP
The chromic ion is the chromium (III) ion.
Oxygen is transferred from bromate ion(s) to the Chromium ion. Leaving hypobromous ion, and/ or bromide ion.
it is a chromium 2 as a good point of reference, and if you don't know the specific charge of an atom, check the ion to which it is bound: the phosphide ion is most commonly charged as a 3- ion because its period is has 3 electrons more than it needs to form a complete octet 2 phosphide ions (per your empirical formula) would have a total ionic charge of 6- if you distribute the (6-) charge evenly through the 3 chromium ions in your empirical formula, then each chromium ion would have to have a charge of 2+ in order for the ionic salt to be neutrally charged. therefore the chromium is chromium (II)
The cation of chromium is Cr3+.
Cr^+2 is the symbol for the Chromium(II) ion
Chromium (II) Carbonate. Although I'm not sure Chromium (II) can form, there might be an overall charge on your formula there...
Cr(SCN)3 is the chemical formula for the Chromium (III) Thiocyanate. This is because Chromium (III) has a charge of +3 while Thiocyanate has a charge of -1. To balance the charges, we switch the 2 charges. So we have 1 ion of chromium (III) with 3 ions of thiocyanate.
CrCl3: A chloride ion has only a single negative charge; therefore, three of them are required to have the same magnitude of electric charge as a chromium (III) ion.
A chromium ion is not neutral. By definition an ion is not neutral. All atoms belong to an isotope, but that has nothing to do with whether the atom is ionized or not.
What is the formula for Chromium ( 6 ) phosphate
The chemical symbol (not formula) of chromium is Cr.
CrS3 is the formula of chromium(VI) sulfide