Problem: What is the molecular geometry about nitrogen in CH3NH2?

We’re being asked to determine the geometry around nitrogen in the CH₃NH₂ molecule.

To determine the geometry of this molecule, we need to do the following steps:

Step 1: Determine the central atom in the molecule.

Step 2: Calculate the total number of valence electrons present.

Step 3: Draw the Lewis structure for the molecule.

Step 4: Determine the electronic and molecular geometry of the molecule.

Let’s begin by determining the central atom.