Answer: The correct answer is positive ion.
Explanation:
Ions are formed when an atom looses or gain electrons.
When an atom looses its electron, it results in the formation of a positive ion which is known as cation and when an atom gains electron, it results in the formation of a negative ion known as anion.
In the question, when potassium gave up an electron, it resulted in the formation of a positive ion which is [tex]K^+[/tex] ion.
Thus, the correct answer is positive ion.
