Periodic Table Study Guide
Periodic Table Study Guide
Periodic Table Study Guide
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<strong>Periodic</strong> <strong>Table</strong> <strong>Study</strong> <strong>Guide</strong>How to Draw LewisStructures8 th Grade Pre-AP/GT ScienceMr. Siteswww.middleschoolscience.com 2008
Lewis Structures1) Find your element on the periodic table.2) Determine the number of valence electrons.3) This is how many electrons you will draw.
Lewis Structures• Find out which group(column) your element isin.• This will tell you thenumber of valenceelectrons your elementhas.• You will only draw thevalence electrons.www.chem4kids.com
Groups ‐ ReviewGroup 1 = 1 electronGroup 2 = 2 electronsGroup 8 = 8 electronsExcept for He, it has 2electrons•Each column iscalled a “group”•Each element in agroup has the samenumber of electronsin their outer orbital,also known as“shells”.www.chem4kids.com•The electrons in theouter shell are called“valence electrons”
Lewis Structures1) Write the elementsymbol.2) Carbon is in the 14 thgroup, so it has 4valence electrons.3) Starting at the right,draw 4 electrons, ordots, counterclockwisearound theelement symbol.
Lewis Structures1) Check your work.2) Using your periodictable, check thatCarbon is in the 14 thgroup.3) You should have 4total electrons, ordots, drawn in forCarbon.
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
Lewis StructuresOn your worksheet, trythese elements on your own:a) Hb) Pc) Cad) Are) Clf) Al
End of <strong>Study</strong> <strong>Guide</strong>.Complete the Lewis StructureWorksheetYou should know how to drawLewis Structures for the first20 elements.
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