Problem: Draw the Lewis structure for the CH3NH2 (skeletal structure H3CNH2).

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FREE Expert Solution

We’re being asked to draw a Lewis structure for H3CNH2


To do so, we first need to do the following steps:

Step 1: Determine the central atom in this molecule.

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

Step 3: Draw the Lewis structure for the molecule.



Step 1: C is less electronegative than N (EN = 4) and H can only form 1 bond so C is the central atom.


Step 2: The total number of valence electrons present  is:


            Group             Valence Electrons

N          5A                   1 × 5 e5 e

C          4A                   1 × 4 e4 e

H         1A                   5 × 1 e5 e

Total:  14 valence e


Step 3: 

The skeletal structure H3CNH2 gives us a clue on how the molecule is connected.


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Problem Details

Draw the Lewis structure for the CH3NH2 (skeletal structure H3CNH2).

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lewis Dot Structure concept. You can view video lessons to learn Lewis Dot Structure. Or if you need more Lewis Dot Structure practice, you can also practice Lewis Dot Structure practice problems.

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Based on our data, we think this problem is relevant for Professor Russell's class at UNCG.