Octet Rule and Exceptions
Chemistry ⇒ Chemical Bonding and Structure
Octet Rule and Exceptions starts at 9 and continues till grade 12.
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Context: The Lewis structure of SF6 shows that sulfur is surrounded by six fluorine atoms.
How many valence electrons does sulfur have in SF6?
Describe what is meant by a 'duplet' in the context of the octet rule.
Describe what is meant by an 'expanded octet'.
Explain why boron trifluoride (BF3) is an exception to the octet rule.
Explain why elements in the second period (like carbon, nitrogen, and oxygen) cannot have expanded octets.
Explain why hydrogen does not follow the octet rule.
Explain why some elements can have more than eight electrons in their valence shell.
State one reason why the octet rule is not always followed in chemical bonding.
State the three main types of exceptions to the octet rule.
What is the octet rule in chemistry?
