Hannah: What’s the difference between VSEPR geometry and shape?
My chem homework has two questions:
1. Predict the VSEPR geometries around the N atoms in ammonia
2. Predict the shapes around the N atoms in ammonia.
I thought geometry and shape were the same thing?
Answers and Views:
Answer by im
No, they’re different. Water for example has two non-bonding pairs of electrons. Its shape is “bent”. Ammonia (NH3) is “trigonal pyramid”, and methane (CH4) is “tetrahedral”, all different shapes with the same electronic configuration.
Just to be clear, “geometry” refers to the position of electron pairs in space, “shape” refers to the position of atoms.
Leave a Reply