Question

multiple choice 2 points
the formal charge on the nitrogen on the structure shown below is:
o h h

o - c - c - n - h
| |
h h
-2
-1
+2
+1
previous

Explanation:

Step1: Recall formal - charge formula

Formal charge = Valence electrons - Non - bonding electrons - $\frac{1}{2}$Bonding electrons

Step2: Determine nitrogen's valence electrons

Nitrogen has 5 valence electrons.

Step3: Count non - bonding and bonding electrons

In the given structure, nitrogen has 2 non - bonding electrons (a lone pair) and 6 bonding electrons (3 single bonds).

Step4: Calculate formal charge

Formal charge = $5 - 2-\frac{6}{2}=5 - 2 - 3=0$

Answer:

0