VSEPR REVIEW

Front

What is the VSEPR theory used for?

Back

VSEPR theory is used to predict the shape of molecules based on the repulsion between electron pairs around a central atom.

Front

How many lone pairs of electrons are present in a trigonal pyramid molecule?

Back

1

Front

Define a lone pair in the context of molecular geometry.

Back

A lone pair is a pair of non-bonding electrons located on the central atom of a molecule.

Front

What is the bond order of the molecule P2?

Back

3

Front

What are pairs of electrons that are not involved in bonding called?

Back

Lone pairs.

Front

According to VSEPR theory, what do molecules do to minimize repulsion?

Back

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

Front

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

Back

Trigonal pyramidal.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs occupy space and can alter the angles between bonding pairs, leading to different molecular shapes.

Front

What is the electron geometry of a molecule with four electron groups?

Back

Tetrahedral.

Front

What is the significance of bond angles in VSEPR theory?

Back

Bond angles are important as they indicate the spatial arrangement of atoms in a molecule, which is influenced by electron pair repulsion.