Question

Draw the Lewis dot formula for ${NH}_3$. How many unshared pairs of electrons are in the outer shell of the central nitrogen atom?

• A. $0$
• B. $1$
• C. $2$
• D. $4$
• E. $6$

Answer 1

The correct option is B $1$

$H\cdot \cdot \stackrel{H}{\stackrel{:}{\underset{\cdot \cdot }{N}}}\cdot \cdot H$.
There is only 1 unshared electron in the lewis dot structure of ammonia.
Option B is correct.