Molecular Geometry and Electron Pair Arrangement

Flashcards covering key concepts related to molecular geometry and electron pair arrangements.

Linear

Molecular geometry with 2 electron groups and 0 lone pairs; approximate bond angle of 180°.

Trigonal Planar

Molecular geometry with 3 electron groups and 0 lone pairs; approximate bond angle of 120°.

Bent

Molecular geometry typically resulting from 3 electron groups and 1 lone pair; bond angles are less than 120°.

Tetrahedral

Molecular geometry with 4 electron groups and 0 lone pairs; approximate bond angle of 109.5°.

Trigonal Pyramid

Molecular geometry with 4 electron groups and 1 lone pair; bond angles are less than 109.5°.

Trigonal Bipyramidal

Molecular geometry with 5 electron groups and 0 lone pairs; bond angles of 90° and 120°.

See-Saw

Molecular geometry derived from trigonal bipyramidal with 4 bonds and 1 lone pair; bond angles vary.

T-Structure

Molecular geometry with 3 bonds and 2 lone pairs in a trigonal bipyramidal arrangement; bond angles are <90°.

Octahedral

Molecular geometry with 6 electron groups and 0 lone pairs; bond angles of 90°.

Square Pyramidal

Molecular geometry with 5 bonds and 1 lone pair; bond angles are 90° and <90°.

Square Planar

Molecular geometry with 4 bonds and 2 lone pairs in an octahedral arrangement; bond angles are 90°.