Chlorine has an electronic structure of 2,8,7.For an atom of chlorine to become stable, which one of the following will it need to do?Gain 1 electron to have a full outer shell.Lose 7 electrons to have a full outer shell.
Question
Chlorine has an electronic structure of 2,8,7.For an atom of chlorine to become stable, which one of the following will it need to do?Gain 1 electron to have a full outer shell.Lose 7 electrons to have a full outer shell.
Solution
Chlorine will need to gain 1 electron to have a full outer shell. This is because atoms are most stable when their outermost shell is full. For chlorine, the outermost shell is the third one, which can hold up to 8 electrons. Since chlorine already has 7 electrons in its outer shell, gaining just 1 more will fill this shell and make the atom stable.
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