What is the Lewis Structure for CaSiO3 (Wollastonite)?Ca has 1 valence electron Si has 4 O has 6

The lewis dot structure for ions normally shows the
constituent elements, with their valence electrons, in brackets, with the electric
charge shown outside the bracket. For instance, the calcium ion would be shown
as

[Ca]+2

Please note that
calcium does not have one valence electron; it has two, and would thus form a +2
ion.

Silicon has 4 valence electrons, and each oxygen has
6, for a total of 22. By using the distribution method, we can determine that one of the
possible lewis dot structures for SiO3 is;

       :O: = Si
- :Ö:

                
|

               :O:

(since I
can't really draw 3-dimensionally on here, the electron pairs should be redistributed
more evenly over the "surface" of the oxygen atoms.)

This
polyatomic ion has a charge of -2, so it balances with a single calcium ion. The lewis
dot structure for this arrangement would look something
like:

[Ca] +2    :O: = Si -
:Ö:

             [           |             ]
-2

                       
:O:

with a bracket drawn around the entire SiO3
ion.