VSEPR and Molecular Geometry

Front

What is a lone pair?

Back

A pair of non-bonding electrons.

Front

What is the molecular geometry of PH3?

Back

Trigonal Pyramidal.

Front

Identify the molecular geometry of CH4.

Back

Tetrahedral.

Front

What is the molecular geometry of CO2?

Back

Linear.

Front

What is the molecular geometry of BF3?

Back

Trigonal Planar.

Front

What is the molecular shape of H2O?

Back

Bent.

Front

Define VSEPR theory.

Back

Valence Shell Electron Pair Repulsion theory; it predicts the shape of molecules based on electron pair repulsion.

Front

What does a trigonal pyramidal shape indicate about a molecule?

Back

It has one lone pair and three bonding pairs around the central atom.

Front

What is the significance of lone pairs in molecular geometry?

Back

Lone pairs occupy space and affect the shape of the molecule by repelling bonding pairs.

Front

How does the presence of double bonds affect molecular geometry?

Back

Double bonds are treated as a single electron pair in VSEPR theory.