Final answer:
The question asks for a Lewis structure of an isomer of C₃H₉N, which could be propylamine. The molecule's longest carbon chain has a primary amine group attached, following a tetrahedral electron group arrangement around carbons and the nitrogen atom, without any formal charges.
Step-by-step explanation:
Understanding the Lewis Structure for C₃H₉N Isomer
One possible Lewis structure for an isomer of C₃H₉N could be that of a primary amine, such as propylamine. We start by drawing the longest carbon chain, which, in this case, is a three-carbon chain with the nitrogen attached to the first carbon. The Lewis structure of the propylamine molecule would look as follows:
H
H-C-H
|
H-C-H
|
H-C-N-H
|
H
Each hydrogen (H) is singly bonded to carbon (C) or nitrogen (N). The nitrogen atom has one lone pair, and there are no formal charges in this molecule. Since there's a tetrahedral organization of electron groups around carbon and nitrogen atoms, the molecule follows this geometry around these atoms.
The electron groups around carbon include both the hydrogen atoms and the carbon or nitrogen they are bonded to. As mentioned, the repulsions of these electron groups are minimized by arranging them in a tetrahedral shape.
This molecular shape and structure ensure that the atoms are held together in a stable configuration, providing a clear visualization of the molecule's structure.