Posted by Chemistry on Wednesday, November 14, 2007 at 7:47pm.
How do I figure out how to write the lewis symbol for the following
A. Br
B. Br
C. Sr
D. Sr2+

Lauren  DrBob222, Wednesday, November 14, 2007 at 7:53pm
Place electrons (it's usually done in pairs) around the atom. Use just the electrons in the outer shell. Therefore, for Br you will have 7 electrons, for Br^ you will have 8. Sr will have 2 and Sr^2+ will have none.
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