Lewis Dot Diagrams continued...
For now just a quick post: CLICK HERE TO TRY WRITING LEWIS DOT DIAGRAMS FOR SOME COVALENT COMPOUNDS
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Friday, October 22, 2010
YEAR 11PY CHEMISTRY REVISION
LEWIS DOT DIAGRAMS....
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!
The next post / updated post will continue with Lewis Dot diagrams and focus on bonds between elements.....
In the meantime check out this site for an interactive slide show on Lewis Dot Diagrams of Covalent Bonds
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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