A simple procedure for writing

Several worked examples relevant to this procedure were given in previous posts please see the Sitemap - Table of Contents (Lewis Electron Dot Structures).

**Lewis electron 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 diazenium ion, N

_{2}H_{3}^{+}.__Step 1__: Connect the atoms with single bonds. The central atom is the nitrogen atom.

Fig. 1: Connect the atoms of the diazenium ion N2H3+ with single bonds. |

__Step 2__: Calculate the # of electrons in π bonds (multiple bonds) using

**formula (1)**:

Where n in this
case is 5 since N

_{2}H_{3}^{+}consists of 5 atoms.
Where V = (5 + 5
+1 + 1 + 1 ) -1 = 12

Therefore, P = 6n
+ 2 – V = 6 *2 + 2 – 12 = 2

**Therefore, there is one double bond in****the structure in Step 1.**

__Step 3 & 4:__The Lewis structure for N_{2}H_{3}^{+ }is as follows:Figure 2: Lewis structure
for diazenium ion |

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