Chemistry 5 Pages 18 & 19.  Identify the number of outer-ring electrons for each of the following 5 6 4 Warm up.

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Presentation transcript:

Chemistry 5 Pages 18 & 19

 Identify the number of outer-ring electrons for each of the following Warm up

If you only plot the outer ring of electrons …. (two each –north, south, east, & west of the chemical symbol) How would you display the electrons for: P Si O These are Lewis Dot Structures

Tips & Practice Mark one electron (dot) at each location before you double up Be N

Work on Lewis Dot worksheet See how many you can complete in ____ minutes

So where are the secrets? copy the following list of atoms (as shown) Look at your Lewis Dot work sheet and write the number of e- from your diagram below the corresponding atomic symbol LiBeBCNOFNe

LiBeBCNOFNe The number of valence electrons corresponds to the group number

Wrap-up  I can explain the relationship between the periodic table group number with the completeness of the outer valence ring.  Complete Lewis Dot Packet