In KIO3, what is the charge on K atom in Lewis structure of molecule ?

A.+1

B.+2

C.−1

D.0

In the Lewis structure of potassium iodate (KIO3), the charge on the potassium (K) atom is determined by its role in the compound. Potassium iodate is an ionic compound consisting of a potassium cation (K⁺) and the iodate anion (IO₃⁻).

To break it down:

Potassium (K) typically forms a cation with a +1 charge. This is because potassium is an alkali metal and it loses one electron to achieve a stable noble gas electron configuration.
The iodate ion (IO₃⁻) consists of iodine (I) and three oxygen atoms (O), with an overall charge of -1.
In the ionic compound KIO3:

The potassium ion (K⁺) carries a +1 charge.
The iodate ion (IO₃⁻) carries a -1 charge.