# Lewis Dot Structure of the sulfite ion SO3-2 – Electron Dot Structure

## Lewis Dot Structure of the sulfite ion SO_{3}^{-2}

A

**simple method for writing Lewis Structures**is 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 the

**sulfite ion**. The chemical formula is**SO**._{3}^{-2}What is the

**SO**?_{3}^{-2}Lewis structure### Draw Lewis structures of **SO**_{3}^{-2} step by step:

_{3}

^{-2}

*The Lewis structures of Nitrogen Monoxide NO are drawn.*1.S

2.Total valence electron is 6+3×6 -(-2)= 26

3.Connect the atoms with single bonds.

4.P=6n+2 -V =6×4 +2 -26 = 26-26 = 0 ; 0 electron which must be shared through pi bonding and unshared i.e; Therefore, there is 0 double bond and an electron..

5.Distribution of other electron

6. Complete the octet shells : Electrons are placed around each atom so that the octet rule is obeyed. Since S is a third row element can accommodate more than 8 valence electrons.

7. Calculare the formal charege….

The lone electron is placed on the S atom which is more electropositive than O and can accommodate better a positive charge

**Relevant Posts**

- Dot Structures & Octet Rule: A Simple Method to write Lewis Structures
- Dot structures – Electron dot structure of nitrite NO2-
- dot structures – Electron dot structure of NO2
- dot structures – Electron dot structure of CO
- Dot structures of NO

**Key Terms**

Lewis structures, electron dot structures, Lewis structures of the sulfite ion SO3-2, electron dot structures of the sulfite ion SO3-2, method for drawing Lewis structures,, chemistry, Chemistry Net

__References:__- G.N. Lewis, J.A.C.S, 38, 762-785, (1916)
- E. C. McGoran, J. Chem. Educ., 68, 19-23 (1991)