Building a Molecular Model of Ammonia
I built a molecular model of an ammonia molecule (NH₃) using a ball-and-stick molecular modeling kit. I started with one blue ball representing a nitrogen atom and three smaller white balls representing hydrogen atoms. I then used three white plastic connecting rods to attach each hydrogen atom to the central nitrogen atom, representing three single covalent bonds.
After connecting the atoms, I arranged the three hydrogen atoms around the nitrogen atom to create a three-dimensional, trigonal pyramidal structure. Unlike methane (CH₄), which has a tetrahedral molecular shape, ammonia has a lone pair of electrons on its nitrogen atom that influences its geometry. This lone pair repels the bonding electron pairs, reducing the hydrogen-nitrogen-hydrogen bond angles to approximately 107 degrees.
This report was published via Actifit app (Android | iOS). Check out the original version here on actifit.io
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