A valid Lewis structure cannot be drawn for which of the following compounds?
A
NF3
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B
CH4
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C
ICl5
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D
SiF4
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Solution
The correct option is CICl5 (a) The central atom has 8 valence electrons.
(b) The central atom has 8 valence electrons. (c) The central atom has 12 valence electrons. (d) The central atom has 8 valence electrons.
Since ICl5 has an expanded octet, it violates the octet rule.