Potassium reacts with iodine to form an ionic compound.
$2K + {I_2} \to 2KI{\rm{ }}$
Which statements describe what happens when potassium reacts with iodine?
1- Each potassium atom loses two electrons.
2- Each potassium atom loses one electron.
3- Each iodine atom gains one electron.
4- Each iodine atom gains two electrons.
1 )
1 and 3
2 )
1 and 4
2 and 3
4 )
2 and 4
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