Lewis dot of Nitrogen Monoxide (NO)

 A simple procedure for writing Lewis structures is given in a previous article entitled “Lewis Structures and the Octet Rule”. Relevant worked examples were given in the following articles: Examples #1, #2.

Another example for writing Lewis structures following the above procedure are given bellow:

Let us consider the case of NO :

Step 1:   Connect the N with the O atom with single bonds

Fig. 1 : Connect the atoms of NO with single bonds

Step 2: Calculate the # of electrons in π bonds (multiple bonds) using formula (1) in the article entitled “Lewis Structures and the Octet Rule”. 

Where n in this case is 2 since NO consists of two atoms.

Where V = 5 +6  = 11 , V is the number of valence electrons of the ion.

Therefore, P = 6n + 2 – V = 6 * 2 + 2 – 11  = 3     So, there is 1 double bond and an electron.

Step 3 & 4: The  Lewis dot resonance structuresof  NO  are as follows:

Fig. 2 : Plausible Lewis Resonance Dot Structures of NO