Chemical Bonding: CH₃NH₂ Lewis Structure

Drawing the Lewis Structure for CH₃NH₂

Viewing Notes:

• In the CH₃NH₂ Lewis structure it makes sense to write the structure as written - a Carbon atom bonded to a Nitrogen atoms with Hydrogen atoms on the outside.
• The -NH₂ part of CH₃NH₂ is called an amine functional group.
• In the Lewis structure for CH₃NH₂ there are a total of 14 valence electrons.

This is the CH3NH2 Lewis structure: Methylamine. For Methylamine we we have 14 valence electrons. For organic compounds, they are often written the way that you should place the atoms on your Lewis structure. So we'll put the carbon here and the Nitrogen, and we can see that there are three Hydrogens on the carbon ... and then two on the Nitrogen.

We'll put two electrons between the atoms to form chemical bonds. And we've used at this point 12 valence electrons. We'll put the last two on the Nitrogen. So at this point all the hydrogens have two valence electrons, so their outer shells are full. The carbon has eight and then the Nitrogen has eight as well. And we've only used 14 valence electrons.

So this is the Lewis structure for CH3NH2, Methylamine, and this is Dr. B. Thanks for watching.