The basic starting point is understanding electron configuration of the elements and realising that we are only concerned with the outer shell of electrons as these electrons are the ones involved in bonding.
REMEMBER this is the valence shell and all elements in the same group have the same valency and the same Lewis Dot Diagram configuration!
1. Draw electron dot diagrams for elements for just the outer shell. The outer shell can contain 8 electrons-the OCTET RULE.
2. Electrons need to be drawn on the four sides of the Symbol on their own first
3. After you complete the four sides start to double up the electrons so they are in pairs. It doesn't matter where you start!
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| Lewis Dot Diagrams for elements |
In the meantime check out this site for an interactive slide show on Lewis Dot Diagrams of Covalent Bonds
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