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Homework Help: Octet and Duet Rule

  1. Feb 17, 2009 #1
    1. The problem statement, all variables and given/known data

    Using your knowledge of the octet rule and the duet rule, determine the missing subscript (??) for the compound below.


    What is a good way of solving this type of equation and what is the answer. I figure you need to draw a Lewis dot structure but knowing what else is need i don't know.
  2. jcsd
  3. Feb 26, 2009 #2


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    Yes, try that. You should be able to determine a reasonable oxidation number. Once you have that, balance the total negative charge with positive.
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