A simple procedure for writing

Therefore, there are 3 possible

**Lewis Dot 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 the

**nitrate ion**. The**molecular formula**is NO_{3}^{-}.__Step 1__: Connect the atoms with single bondsFig. 1 : Connect the atoms of NO_{3}^{-}
with single bonds |

__Step 2__: Calculate the # of electrons in π bonds (multiple bonds) using**formula (1)**:
Where n in this
case is 4. Where V = (5 +6*3) – (-1) = 24 , V is the number of

**valence electrons of the nitrate ion**.
Therefore, P = 6n
+ 2 – V = 6 * 4 + 2 – 24 = 2

**So, there is 1 double bond.**

__Step 3 & 4__: The

*of*

**dot resonance structures****NO**

_{3}^{-}_{ }are

**as follows:**

Fig. 2 : Plausible Lewis
Resonance Dot Structures of NO_{3}^{-} _{ } |

**Lewis resonance structures**for NO_{3}^{-}
what is the Lewis structure of NO?

ReplyDeletePlease see the following post:

Deletehttp://chem-net.blogspot.com/2013/09/lewis-dot-structure-nitrogen-monoxide.html

Which of the above structures contributes more to the resonance?

ReplyDeleteThe above resonance structures are all equivalent because of the same charge separation and bond order. They are all contribute equally to the resonance.

Delete