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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)
What else can I help you with?
What is the compound name for Cr3P2?
The compound name for Cr3P2 is chromium(III) phosphide.
What is the reaction when chromium(II) iodide is put into water?
When chromium(II) iodide is put into water, it undergoes a redox reaction where chromium(II) ions are oxidized to chromium(III) and iodide ions are reduced to iodine. This results in the formation of chromium(III) hydroxide and iodine.
Is CrN cation a chromium II or III?
The CrN cation is typically a chromium(III) cation, where chromium has a +3 oxidation state. This means that chromium has lost three electrons and has a charge of +3.
What is the formula for chromium (III) fluoride?
the chemical formula for chromim(II) fluoride is CrF2
What is the name of the compound CrF3 x 4H2O?
The compound CrF3 x 4H2O is called chromium(III) fluoride tetrahydrate.
What is the compound name for Cr3P2?
The compound name for Cr3P2 is chromium(III) phosphide.
What is the name of the formula Cr3P2?
The name of the compound Cr3P2 is chromium(II) phosphide.
What is the Older Name for this compound Cr3P2?
The older name for the compound Cr3P2 is trichromium diphosphide.
What is the reaction when chromium(II) iodide is put into water?
When chromium(II) iodide is put into water, it undergoes a redox reaction where chromium(II) ions are oxidized to chromium(III) and iodide ions are reduced to iodine. This results in the formation of chromium(III) hydroxide and iodine.
Is CrN cation a chromium II or III?
The CrN cation is typically a chromium(III) cation, where chromium has a +3 oxidation state. This means that chromium has lost three electrons and has a charge of +3.
What is the formula for chromium (III) fluoride?
the chemical formula for chromim(II) fluoride is CrF2
What is the name of the compound CrF3 x 4H2O?
The compound CrF3 x 4H2O is called chromium(III) fluoride tetrahydrate.
The name for the compound with the formula Cr2O3 would be written as what?
Cr2O3 is the chemical formula for chromium (III) oxide
What is the name of the compound Cr No3 6?
The name of CrCN2 is chromium(II) cyanide.
What is the stock system name for CrSO3?
iron(II
What is the name of the ionic compound CrCl3?
Chromium (III) chloride
What is the formula CrO?
CrO is the formula for chromium(II) oxide. Cr is the elemental symbol for chrome, and O represents oxygen. The molecular weight of CrO is 68.00 grams/per mole using two significant figures. Variants of CrO include II, III and VI.
