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Home > physical & Theoretical Chemistry > physics & Theoretical Chemistry - Lewis structures - concept & examples > Lewis Structures and the Octet dominion > Covalent Lewis structure of SO2 > Lewis structures of Sulfur Trioxide SO3 > Lewis Dot structure of the sulfite ion SO3-2
A simple technique for writing Lewis Structures is offered in a previous post entitled “Lewis Structures and the Octet Rule”.
several worked examples relevant to this procedure were offered in previous posts please watch the Sitemap - Table of components (Lewis Electron period Structures).
Let us consider the instance of the sulfite ion. The chemistry formula is SO3-2 .
What is the SO3-2 Lewis structure?
Where n in this situation is 4 since SO3-2 consists of 4 atoms.
whereby V = (6 + 6 + 6 + 6 ) – (-2) = 26 , V is the variety of valence electrons of the ion.
Therefore, p = 6n + 2 – V = 6 * 4 + 2 – 26 = 0 There room no π electron in SO3-2
Therefore, the structure in step 1 is a plausible Lewis framework of SO3-2.
Electrons are placed about each atom so the the octet dominance is obeyed. Since S is a third row element can accommodate much more than 8 valence electrons.
See more: What Does A Sardius Stone Look Like, What Is Sardine Stone
Resonance Structures #1-#3 are much more stable due to less charge separation - even though the S atom has much more than 8 electrons (expanded octet) - compare to structure #4. Structure #4 is less stable since of bigger charge separation.
Lewis Structures|Octet Rule: A Simple method to compose Lewis Structures
Simple Procedure for composing Lewis frameworks – Lewis frameworks for sulfur trioxide (SO3)
Dot structure |How do I attract a Lewis structure for a molecule - Lewis framework of Cyanamide
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)
Lewis structures, electron dot structures, Lewis structures of the sulfite ion SO3-2, electron dot frameworks of the sulfite ion SO3-2, method for drawing Lewis structures,, chemistry, Chemistry Net