Question #ede5e

The charges of the other transition elements can always be found in ionic compounds using the number of molecules of the other ion. For example, in $F {e}_{2} {O}_{3}$ The charge of iron is 3+ because the charges of each ion in the ion must total in zero. Oxygen's charge is 2-, so the least common multiple is six, so ($3$$\times {2}^{-}$$= {6}^{-}$).
And since ($2$$\times {3}^{+}$$= {6}^{+}$), and (${6}^{+}$$\times {6}^{-}$$= 0$), the charge is neutral(0). In this way the charge of individual elements in binary ionic compounds can be found by using the number of the other atom within the compound.