Representing Atoms Visually Lewis Dot Diagrams (Dot Diagrams; Lewis Structures)

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Presentation transcript:

Representing Atoms Visually Lewis Dot Diagrams (Dot Diagrams; Lewis Structures)

Lewis Structures One type of visual representation of an atom Helpful for determining bonding in compounds There is one thing you need to know for Lewis Structures: # valence electrons

1 Valence Electron2 Valence Electron3 Valence Electron4 Valence Electron5 Valence Electron6 Valence Electron7 Valence Electron8 Valence Electron

How do I draw a Lewis Structure? 1. Draw the symbol for the element 2. Figure out the number of valence electrons for the element using the periodic table 3. Draw the correct number of dots around the element symbol 4. Draw one dot on each of the four sides before putting a second dot on each side.

Example of a Lewis Structure Neon is in Group 8 therefore it has 8 valence electrons surrounding it. This is represented by the dots.

Lewis Structures - Practice Calcium (Ca) Lithium (Li) Nitrogen (N) Argon (Ar) Boron (B)

Classwork/Homework Complete your worksheet Lewis Dot Structures Due: W 10/26/11