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CHEM101 (16)
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10.1 Summary.docx

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Department
Chemistry
Course
CHEM101
Professor
Yoram Apelblat
Semester
Fall

Description
101SummaryOctetRuleandLewisStructuresMustdeterminenumberofvalenceelectronsthendeterminenumberofbondingandlonepairs1AtomwithlowerelectronegativityinthecenterlowergroupnumberorhigherperiodatomthatrequiresmoreelectronswillbeinthecenterNisinthecenterforNFbecauseithas5electronsandFhas7onlyneedstogainone32Determinetotalnumberofvalenceelectronsbyaddingvalenceelectronsofindividualatomsinthecompoundaddsubtractelectronswhenthereisagivenchargeontheatom3Tofindremainingelectronsafterbondsubtract2electronspersinglebondfromoriginalvalencevalue4FilllonepairsforsurroundingatomstoensuretheiroctetsarefullthendistributeremainingelectronstocentralatomThesestepscanbeappliedtobondsbetweenCNOoHydrogenatomsformonebondoCarbonatomsformfourbondsoNitrogenatomsformthreebondsoOxygenatomsformtwobondsoSurroundinghalogensformonebond5Additionalstepformultiplebondedmoleculesonlywhichoccurswhencentralatomcannotattainfulloctetchangealonepairofanotheratomtoabondi
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