Which of the following contains an atom that does not obey the octet rule? A)LiBr B)CO₂ C)PCl₃ D)CCl₄

Name: Which of the following contains an atom that does not obey the octet rule? A)LiBr B)CO 2 C)PCl 3 D)CCl 4
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Question

Quizplus · Accepted Answer

PCl5 has a central phosphorous atom that has 5 bonded atoms surrounding it. Since phosphorus has 5 valence electrons, it has only 10 electrons in its valence shell, which is less than the octet rule requires. Therefore, it is an exception to the octet rule.

Which of the Following Contains an Atom That Does Not