Where Can i find drawing of the electron dot structure of the following atoms.
Argon,Calcium,Iodine
www.webelements.com will give you the electron configuration. Scroll down the menu on the left side. The electron dot structure is done this way:
Write the symbol for the element. That stands for the nucleus and all of the inner shell electrons. Add a dot to represent each electron in the outside shell.
For example, Na in in group IA; therefore, it has 1 electron in its outside shell. The electron dot structure is Na.
Ca is in group IIA; the electron dot structure is Ca:
Mg is Mg:
It is harder to do Cl (because I can't put in the spaces but here is a try).
 ..
:Cl.
 ..
It works a little better in bold face.
 ..
:Cl.
 ..
  ..
:Ar:
  ..
Well, Ca would just have two (assuming it's in group 2, I don't have a periodic table handy), and Iodine is diatomic, so just stick the two of them together!
To find the electron dot structure of atoms, you can start by finding the electron configuration of each element. In this case, you can visit the website www.webelements.com, which provides information about the elements.
Once you are on the website, scroll down the menu on the left side and click on the desired element. For example, for Argon, click on "Ar" in the periodic table. The website will provide you with the electron configuration of Argon, which is 1s2 2s2 2p6 3s2 3p6.
To represent the electron dot structure, you write the symbol of the element and then add dots to represent each electron in the outermost shell. For Argon, the outermost shell is the third shell (3s2 3p6), which contains eight electrons. So, the electron dot structure of Argon is:
  ..
:Ar:
  ..
Similarly, you can repeat this process for other elements like Calcium and Iodine.