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Octet Rule and Exceptions

Chemistry ⇒ Chemical Bonding and Structure

Octet Rule and Exceptions starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Octet Rule and Exceptions. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
Describe one reason why the octet rule has exceptions.
Describe the difference between an expanded octet and an incomplete octet.
Describe why SF6 is an exception to the octet rule.
Explain why free radicals are exceptions to the octet rule.
Explain why hydrogen does not follow the octet rule.
Explain why phosphorus pentachloride (PCl5) is considered an exception to the octet rule.
How many valence electrons does the central atom have in BF3?
What is the octet rule in chemistry?
Consider the molecule ClO2. Explain why this molecule is an exception to the octet rule and describe the type of exception it represents.
Explain why the octet rule is not strictly applicable to transition metal complexes.
Given the Lewis structure of NO, explain why it does not satisfy the octet rule and how the electrons are distributed between the atoms.
State the maximum number of valence electrons that sulfur can have in a molecule, and give an example of such a molecule.