1. Mar 5, 2010 #1

   johncena

   

   In my textbook , it is given that Atomic radius of Ga is smaller than that of Al due to presence of d-orbitals in Ga.
   But how does the presence of d-orbitals reduces size?

    

   johncena, Mar 5, 2010
2. 
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3. Mar 5, 2010 #2

   Char. Limit

   

   Gold Member

   But it's not...
   
   The atomic radius of Aluminum is 125 pm. The atomic radius of Gallium is 135 pm.

    

   Char. Limit, Mar 5, 2010
4. Mar 5, 2010 #3

   johncena

   

   No, i refered wikipedia article...Atomic radius of aluminium is 143 pm

    

   johncena, Mar 5, 2010
5. Mar 5, 2010 #4

   Char. Limit

   

   Gold Member

   http://www.chemicool.com/elements/aluminum.html
   http://www.chemicool.com/elements/gallium.html
   
   This website disagrees.

    

   Char. Limit, Mar 5, 2010
6. Mar 10, 2010 #5

   johncena

   

   Which website is true ?I am really confused .

    

   johncena, Mar 10, 2010

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