We are asked which does not have 8 valence electrons.
Valence electrons of the neutral atom of the main group element can be identified using the group number.
Which of the following does not have eight valence electrons?
e. All of the above have eight valence electrons.
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Our tutors have indicated that to solve this problem you will need to apply the Lewis Dot Structure concept. You can view video lessons to learn Lewis Dot Structure. Or if you need more Lewis Dot Structure practice, you can also practice Lewis Dot Structure practice problems.