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QUESTION

# What is the ionic formula for potassium iodide?

KI

Potassium Iodide is an binary ionic compound formed from a metal and a non-metal

Potassium is an Alkali Metal in the first column of . This means that potassium has 1 valence electron it readily gives away in order to seek the stability of the octet. This makes potassium a K^(+1) cation.

Iodine is a Halogen in the 17th column or p^5 group. Iodine has 7 . It needs one electron to make it stable at 8 electrons in its valence shells. This makes chlorine a Il^(−1 ) anion.

Ionic bonds form when the charges between the metal cation and non-metal anion are equal and opposite. This means that one I^(−1) anions will balance with one K^+1 cation.

This makes the formula for Potassium Iodie, KI.