* Identify the known charges:
* Oxygen (O) typically has a -2 charge.
* Iodine (I) can have multiple oxidation states, but in this case, it's in the +7 oxidation state to balance out the charges of the four oxygen atoms.
* Calculate the overall charge of the iodate ion (IO4):
* Four oxygen atoms have a total charge of -8 (4 x -2).
* Iodine has a +7 charge.
* Therefore, the iodate ion (IO4) has an overall charge of -1 (+7 - 8 = -1).
* Determine the charge of potassium (K):
* Since KIO4 is a neutral compound, the overall charge must be zero.
* To balance the -1 charge of the iodate ion, potassium (K) must have a +1 charge.
Therefore, the charge on K in the compound KIO4 is +1.
