U3 Day 11 Warm up - VSEPR (Molecular Geometry)

Front

What is a lone pair in molecular geometry?

Back

A lone pair is defined as a pair of non-bonding electrons.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs can alter the shape of a molecule by repelling bonding pairs of electrons.

Front

What is the molecular geometry of H2O?

Back

The shape of H2O is bent.

Front

What determines whether a molecule is polar or nonpolar?

Back

The distribution of electron density and the shape of the molecule determine if it is polar or nonpolar.

Front

Is CS2 a polar or nonpolar molecule?

Back

CS2 is a nonpolar molecule.

Front

What is VSEPR theory?

Back

VSEPR (Valence Shell Electron Pair Repulsion) theory predicts the shape of molecules based on the repulsion between electron pairs.

Front

What is the electron geometry of a molecule with four bonding pairs and no lone pairs?

Back

The electron geometry is tetrahedral.

Front

What is the molecular geometry of a molecule with three bonding pairs and one lone pair?

Back

The molecular geometry is trigonal pyramidal.

Front

According to VSEPR, what do molecules adjust their shapes to minimize?

Back

Molecules adjust their shapes to keep pairs of valence electrons as far away from each other as possible.

Front

True or False: A molecule with a lone pair on the central atom has the same electron and molecular geometry.

Back

False.