How do you make a dot diagram

I don't know how to make them we learned in class but i wasn't there and i have to make a dot diagram and its a big part of my grade can someone help me plz[/b]


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Ok well you start out with your Element lets take Clorine (Cl on the periodic table).
Cl's atomic number is 17.
Now if we break it down into shells
2 - 8 - 7
You take the valence shell and simply start at the top of Cl. When drawing a Lewis Dot diagram if there are 2 or more in the valence shell you start by putting 2 at the top of your element and then coutinualy count around so. step by step.

1st write Cl (leave space around for dots)
2nd put 2 dots on top
3rd put 1 dot on the left
4th put 1 dot under Cl
5th put 1 on the left
Now if you count ull see that the 2 on top pluse the 3 others is 5 which means you still have 2 more to place to make the 7 dots. Todo so you have to simply double them so..
6th put a 2nd dot on the right of Cl
7th put a 2nd dot under Cl

WebElements: the periodic table on the WWW []

Copyright 1993-20010 Mark Winter [The University of Sheffield and WebElements Ltd, UK]. All rights reserved.