What is molecular geometry?
Molecular geometry
is the where there is a three dimensional representation for atoms. We use the
VSEPR model to determine shape and behavior of electron pair in the atoms. While
we do use the Lewis Dot Model to help us, we can also determine shape through
various methods of X-rays.
These examples show 3d and 2d
models. In the Lewis Dot Structure we can see single, double, triple bonds and
even lone pairs. Lone pairs are electrons that repel each other to form an
angle. The amount of electrons can determine the shape of bonded atoms.
Question to leave with you… What uses does molecular
geometry prove to you?
Three facts
a. Pairs of electrons that are most
often involved in forming bonds and making molecules are called bonding pairs.
b. The VSEPR model is used to
predict the typical geometry.
c.
The outside electrons are called valence electrons which forms bonds
with valence electrons.
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