Question

1. draw the lewis structure of the 3 - atom functional group containing nitrogen, called an amine group, that dopamine and adenine both have in common? (insert your drawing here)

Explanation:

An amine group is -NH₂. Nitrogen has 5 valence electrons. In -NH₂, nitrogen forms two single bonds with hydrogen (each hydrogen has 1 valence electron). Nitrogen also has one lone pair of electrons.

Answer:

The Lewis structure of the amine group (-NH₂) is:
$$\text{H}-\text{N}-\text{H}$$
with two lone pairs on the nitrogen atom (represented as two dots on the nitrogen).