Lewis structure of SO2 – Simple Procedure for drawing Dot structures
A simple method for writing Lewis Structures was given in a previous article entitled “Lewis Structures and the Octet Rule”. Several worked examples relevant to this procedure were given in previous posts please see the Sitemap - Table of Contents (Lewis Electron Dot Structures).
Let us consider the case of SO2.
Step 1: Connect the atoms with single bonds.
Step 2: Calculate the # of electrons in π bonds (multiple bonds) using formula (1) :
Where n in this case is 3. Where V = 6 + 6 + 6 = 18, V is the number of valence electrons of the molecule.
Therefore, P = 6n + 2 – V = 6 * 3 + 2 – 18 = 2 Therefore, there is one double bond in the molecule.
Step 3 & 4: The resonance structures of SO2 are as follows:
Relevant Posts - Relevant Videos
- G.N. Lewis, J.A.C.S, 38, 762-785, (1916)
- E. C. McGoran, J. Chem. Educ., 68, 19-23 (1991)
- A.B.P. Lever, J. Chem. Educ., 49, 819-821, (1972)
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