How do you draw a bohr diagram of calcium and chlorine?

Do you know what a Bohr diagram is?
It's hard to describe without pictures so have a look at this animation instead
Drawing a Bohr Diagram
Put on the sound it has a nice tune.
Here is a cool site to practice Clickable Periodic Chart work these out and you'll never be stuck again!

If you are still having problems after looking at these sites post back and I'll see where you are going wrong.

Stupid