Chem VESPR

electron domain geometry for 3 domains + angle

Trigonal planar (120° bond angles).

3B 1NB + angle

Triagonal Pyramidal Approximately $107°$

What is the difference between electron domain geometry and molecular geometry?

Electron domain geometry considers all electron pairs (bonding and lone)

How do lone pairs affect molecular geometry?

Lone pairs exert stronger repulsion than bonding pairs

electron domain geometry for 2 domains + Angle

Linear (180° bond angles).

2B 1NB + Angle

V-shaped Approximately <120

Why do lone pairs reduce bond angles?

Lone pairs occupy more space than bonding pairs and are localized closer to the nucleus

4B 0NB + angle

tetrahedral 109.5°

Define 'electron domain'.

An electron domain is a region in which electrons are most likely to be found

3B 2NB

T-shaped

2B 2NB + Angle

v-shaped, 104

5 electron domains

Trigonal bipyramidal,

5B 0NB + angle

Trigonal bipyramidal, 90, 120

4B 1NB+ angle

See Saw 120

3B 2NB

T shaped

2B 3NB

Linear geometry

6 electron domains geometry

Octahedral geomerty

6B 0NB + angle

Octahedral 90

5B 1NB

Square pyramidal

4B 2NB

Square planar