Covalent Bonds

Recently we have been studying about Covalent Bonds and what happens when they do bond. Also we have talked about the Lewis Structure, molecular shapes also known as the  VESPAR model which is an acronym for Valence Shell Electron-Pair Repulsion. We have done many different worksheets and and bookwork. We have looked at equations to find out if they are ionic, covalent, or both. How you find out these types of is you look at the equation and see if its a metal+nonmetal and it would be ionic. If you have a nonmetal+nonmetal it would be covalent and the last way would be a compound containing a polyatomic ion. An example of an ionic compound is CaCl2 because it is a metal+ a nonmetal. H2O is covalent because it is a nonmetal + a nonmetal. Lastly Na2Co3 because it contains one polyatomic ion. Going back to the Lewis Structure, molecular shapes and VESPAR model. The Lewis Structure is a dot diagrams is the amount of valence electrons in an atom. This video is a really good explanation on how to write them.



After you understand the Lewis Dot structures you move into the VESPAR model or molecular shapes
the formula CH4 has a Lewis Structure is this image here----------------->

This video is a really good tutorial about the VESPAR model.






The molecular shape of CH4 if a tetrahedral because it has 4 total pairs and 4 shared pairs and 0 lone pairs. This video explains a little more about how the molecules combine and form these 3-D shapes.

Here is a worksheet I did about Lewis Structure and the Molecular shapes it has.

Here is the back page of the worksheet.