02_Lewis_Struct_2018_Sept14.pdf - Announcements • Office...

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Office Hours: Tuesdays and Thursdays from 12:00 1:30 Room ORCH 4005 Note: Late quiz submissions will get 0. You can submit the quiz, but I can see that you submitted late. I will update your mark accordingly. There are two mistakes in quiz #2 (Discussed in class). Please email me if you think you were marked unfairily. Announcements
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If it satisfy the octet rule, it is valid (not necessarily the best) Make an element hypervalent ONLY if it leads to an improvement of the partial charges. If increasing the valence beyond an octet makes the charges worse, it is not a valid structure . As a rule of thumb, if the central atom is has a negative formal charge, it is not a valid structure. Only elements in the third period or later can become hypervalent. Valid Lewis Structures
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1. How many chemically reasonable resonance structures exist for H 2 SO 4 Pre-reading Quiz Error # 1
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Pre-reading Quiz Error # 2
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