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).
Since it is an ionic compound, the charges on the Cr and the O have to balance out to 0 (zero).
The charge on a oxygen atom is always 2-. Multiply that by three and you get 6-.
Since the charge has to balance out, the Chromium must have a total charge of 6+. Divide by 2 to get 3. Each Chromium atom has a charge of 3+.
Hope this helps!
charge on chromium in the salt CrF3 is positive 3 (+3)
Cr2O3
Two Chromium Atoms, and 3 Oxygen Atoms. (Cr2O3)
"Chromium(III) oxide", or "dichromium trioxide".
Cr2O3 is known as Chromium(III) oxide. Please see the "related links" below for more information about this compound.
It is ionic because chromium is a metal.
Cr2O3 is, Chromium (III) oxide or simply Chromium oxide.
Cr2O3 is the chemical formula for chromium (III) oxide
Chromium(III) oxide: Cr2O3
Cr2O3
The compound Cr2O3 is chromium(III) oxide. It is a naturally inorganic occurring compound and it is used primarily as green pigment.
Two Chromium Atoms, and 3 Oxygen Atoms. (Cr2O3)
Chromium (II) chloride = CrCl2Chromium (III) chloride = CrCl3 Chromium (IV) chloride = CrCl4
"Chromium(III) oxide", or "dichromium trioxide".
Cr2O3 is known as Chromium(III) oxide. Please see the "related links" below for more information about this compound.
Chromium oxide may refer to:Chromium(II) oxide, CrOChromium(III) oxide, Cr2O3Chromium dioxide (chromium(IV) oxide), CrO2Chromium trioxide (chromium(VI) oxide), CrO3
It is ionic compound as the difference in the electronegativity between chromium and oxygen is more than 1.7
It is ionic because chromium is a metal.