VSEPR comprehension check

Front

What is VSEPR theory?

Back

VSEPR (Valence Shell Electron Pair Repulsion) theory is a model used to predict the geometry of individual molecules based on the repulsion between the electron pairs in the valence shell of the central atom.

Front

How many bonds are in a molecule of sulfur difluoride (SF2)?

Back

2

Front

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

Back

Tetrahedral

Front

Which molecular shape has one or more lone pairs on the central atom?

Back

Bent

Front

Define a lone pair in the context of VSEPR theory.

Back

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

Front

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

Back

Trigonal pyramidal

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs repel more strongly than bonding pairs, which can alter the angles between bonds and the overall shape of the molecule.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

Approximately 109.5 degrees.

Front

What shape is formed by two bonding pairs and two lone pairs?

Back

Bent.

Front

What is the molecular geometry of a molecule with two bonding pairs and no lone pairs?

Back

Linear.