Question

binary ionic compounds with transition metals
transition metals have unpredictable charges.
list the six that are on your oxidation chart with roman numerals
to show they can vary. (striped ½ and ½ on coloring sheets too)
ions
names
ions
names

Explanation:

Transition metals often have variable oxidation states. Common ones with unpredictable charges are named using Roman numerals to indicate the charge of the metal ion in the compound.

Answer:

1. Iron (Fe): Fe²⁺ (iron(II)), Fe³⁺ (iron(III))
2. Copper (Cu): Cu⁺ (copper(I)), Cu²⁺ (copper(II))
3. Cobalt (Co): Co²⁺ (cobalt(II)), Co³⁺ (cobalt(III))
4. Nickel (Ni): Ni²⁺ (nickel(II)), Ni³⁺ (nickel(III))
5. Manganese (Mn): Mn²⁺ (manganese(II)), Mn³⁺ (manganese(III)), Mn⁴⁺ (manganese(IV)), Mn⁷⁺ (manganese(VII))
6. Chromium (Cr): Cr²⁺ (chromium(II)), Cr³⁺ (chromium(III)), Cr⁶⁺ (chromium(VI))