Molecular Geometry and Polarity

Flashcards covering key concepts related to molecular structure and geometry, including definitions of molecular shapes and polarity.

Linear

A molecular shape where bond angle is 180°, with 2 bonding areas and no lone pairs.

Trigonal Planar

A molecular shape with a bond angle of 120°, having 3 bonding areas and no lone pairs.

Bent

A molecular shape with a bond angle of approximately 120°, typically having 2 bonding pairs and 1 lone pair.

Tetrahedral

A molecular shape with bond angles of 109.5°, consisting of 4 bonding areas.

Trigonal Pyramidal

A molecular shape with a bond angle less than 109.5°, featuring 3 bonding areas and 1 lone pair (e.g., NH3).

Bent (H₂O)

A molecular shape with a bond angle of about 104.5°, featuring 2 bonding pairs and 2 lone pairs.

Trigonal Bipyramidal

A molecular shape with bond angles of 90° and 120°, having a total of 5 bonding areas.

See-Saw

A molecular shape with bond angles of approximately 90° and 120°, resulting from 4 bonding areas and 1 lone pair.

T-Shaped

A molecular shape with 3 bonding pairs and 2 lone pairs, leading to bond angles around 90°.

Square Pyramidal

A molecular shape consisting of 5 bonding areas and 1 lone pair, with bond angles around 90°.

Square Planar

A molecular shape with 4 bonding areas and 2 lone pairs, having bond angles of 90°.

Nonpolar Molecule

A molecule that exhibits no overall dipole moment due to the symmetry of its structure, even with lone pairs on the central atom.