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Home > physics & Theoretical Chemistry > physics & Theoretical Chemistry - Lewis structures - theory & examples > Lewis Structures and also the Octet preeminence > Covalent Lewis framework of SO2 > Lewis frameworks of Sulfur Trioxide SO3 > Lewis Dot framework of the sulfite ion SO3-2

A simple an approach for creating Lewis Structures is offered in a previous article entitled “Lewis Structures and also the Octet Rule”.

number of worked instances relevant come this procedure were offered in previous short articles please watch the Sitemap - Table of contents (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 case is 4 due to the fact that SO3-2 consists of 4 atoms.

whereby V = (6 + 6 + 6 + 6 ) – (-2) = 26 , V is the variety of valence electron of the ion.

Therefore, p = 6n + 2 – V = 6 * 4 + 2 – 26  = 0   There space no  π electrons in SO3-2

Therefore, the framework in action 1 is a plausible Lewis structure of SO3-2.

Electrons space placed roughly each atom so that the octet rule is obeyed. Since S is a third row aspect can accommodate much more than 8 valence electrons.

See more: How Is A Yeast Cell Different From An Onion Skin Cell Lab Quiz Flashcards


Resonance Structures #1-#3 are an ext stable because of less charge separation - also though the S atom has an ext than 8 electrons (expanded octet) - compare to structure #4. Framework #4 is much less stable due to the fact that of larger charge separation.

Lewis Structures|Octet Rule: A Simple an approach to write Lewis Structures

Simple Procedure for creating Lewis frameworks – Lewis frameworks for sulfur trioxide (SO3)

Dot framework |How carry out I draw a Lewis framework for a molecule - Lewis structure 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)
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