Lewis Structures, Molecular Geometry, and Intermolecular Forces

Front

What are Lewis Structures?

Back

Lewis Structures are diagrams that represent the bonding between atoms of a molecule and the lone pairs of electrons that may exist. They help visualize the arrangement of electrons in a molecule.

Front

What is the VSEPR theory?

Back

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

Front

Define molecular geometry.

Back

Molecular geometry refers to the three-dimensional arrangement of the atoms in a molecule, which is determined by the number of bonds and lone pairs around the central atom.

Front

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

Back

The shape is tetrahedral.

Front

What type of intermolecular forces are present in polar molecules?

Back

Polar molecules exhibit dipole-dipole interactions due to the positive and negative ends of the molecules attracting each other.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary dipoles in molecules, occurring in all molecules but are the only forces present in nonpolar molecules.

Front

What is hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole interaction that occurs when hydrogen is bonded to highly electronegative atoms like nitrogen, oxygen, or fluorine.

Front

What is the molecular shape of BF3?

Back

BF3 has a trigonal planar shape.

Front

Does HCl exhibit hydrogen bonding?

Back

No, HCl does not exhibit hydrogen bonding because it does not have a hydrogen atom bonded to a highly electronegative atom.

Front

What is the molecular shape of SeF4?

Back

SeF4 has a see-saw molecular shape.