chem 1 vsepr theory names

why do I need to know this if this isn't even a correct model for bonding lmao chem is dumb

VSEPR Theory

Valence Shell Electron Pair Repulsion theory, which predicts the geometry of molecular structures based on the repulsion between electron pairs around a central atom.

Electron Geometry

The spatial arrangement of all electron groups (bonding and lone pairs) around a central atom.

Linear

Electron geometry with 2 electron groups; bond angle is 180°.

Trigonal Planar

Electron geometry with 3 electron groups; bond angle is 120°.

Tetrahedral

Electron geometry with 4 electron groups; bond angle is 109.5°.

Trigonal Bipyramidal

Electron geometry with 5 electron groups; bond angles are 90° and 120°.

Octahedral

Electron geometry with 6 electron groups; bond angle is 90°.

VSEPR Notation

A notation used to describe the arrangement of electron pairs around a central atom, where 'A' represents the central atom, 'B' the surrounding atoms, and 'E' the lone pairs.

AX2

VSEPR notation for linear geometry with no lone pairs, 180 degrees bond angle

AX3

VSEPR notation for trigonal planar geometry with no lone pairs, 120 degrees bond angle

AX2E

VSEPR notation for bent geometry with one lone pair, less than 120 degrees bond angle.

AX3E

VSEPR notation for trigonal pyramidal geometry with one lone pair, approximately 107 degrees bond angle.

AX4

VSEPR notation for tetrahedral geometry with no lone pairs, 109.5 degrees bond angle.

AX4E

VSEPR notation for seesaw geometry with one lone pair, varying bond angles.

AX5

VSEPR notation for trigonal bipyramidal geometry with no lone pairs, 90 and 120 degrees bond angles.

AX5E

VSEPR notation for square pyramidal geometry with one lone pair, varying bond angles.

AX6

VSEPR notation for octahedral geometry with no lone pairs, 90 degrees bond angle.

AX4E2

VSEPR notation for square planar geometry with two lone pairs, 90 degrees bond angle.

AX3E2

VSEPR notation for T-shaped geometry with two lone pairs, varying bond angles.

AX2E2

VSEPR notation for bent geometry with two lone pairs, approximately 104.5 degrees bond angle.

AX2E3

VSEPR notation for linear geometry with three lone pairs, 180 degrees bond angle.