Molecular Geometry and Polarity (Honors)

Front

What is molecular geometry?

Back

Molecular geometry refers to the three-dimensional arrangement of atoms within a molecule, which affects its physical and chemical properties.

Front

Define polarity in molecules.

Back

Polarity in molecules refers to the distribution of electrical charge over the atoms in a molecule, leading to regions of partial positive and negative charge.

Front

What is a polar molecule?

Back

A polar molecule is one that has a net dipole moment due to the presence of polar bonds and an asymmetric shape.

Front

What is a non-polar molecule?

Back

A non-polar molecule is one that does not have a net dipole moment, often due to symmetrical arrangement of bonds.

Front

What is the VSEPR theory?

Back

The Valence Shell Electron Pair Repulsion (VSEPR) theory predicts the geometry of molecules based on the repulsion between electron pairs around a central atom.

Front

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

Back

Tetrahedral.

Front

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

Back

Trigonal pyramidal.

Front

What is the shape of a molecule with two bonding pairs and two lone pairs?

Back

Bent.

Front

How do lone pairs affect molecular geometry?

Back

Lone pairs occupy space and repel bonding pairs, altering the angles and shape of the molecule.

Front

What is the significance of electronegativity in determining polarity?

Back

Electronegativity is the ability of an atom to attract electrons; differences in electronegativity between atoms in a bond can create polar bonds.