VSEPR Theory and Molecular Geometry + more

What does VSEPRT stand for?

What does the Valence Shell Electron Pair Repulsion Theory say?

• The electron pairs (both shared and unshared) in the outermost energy level try to get as far apart from each other as possible

• The electron pairs in the outermost energy level try to get as attracted to each other as possible

• A molecule with three electrons will always have a linear formation of molecular geometry

• VSEPRT (veh.seh.pert)

How many unshared pairs does a molecule arranged in a linear way have?

• 0

• 1

• 2

• 3

Is CO2 arranged in a linear or bent fashion?

• Linear, since it has no unshared pairs of electrons

• Bent, since it has one unshared pair of electrons

What is the angle degree of a bent molecular structure?4

• 104.5

• 107.5

• 109.5

• 120

How many outer atoms does a trigonal planar structure have?

• 3

• 4

• 1

• 5

Which 4-atom structure has NO unshared pairs?

• Trigonal planar

• Pyramid

What is the angle degree of a trigonal planar/pyramid structure?

• 120/107.5

• 107.5/120

• 104.5/107.5

A tetrahedral formation has 4 total atoms and an angle degree of 109.5.

• True

• False

A trigonal bipyramidal shape consists of 5 outer atoms, no unshared pairs, and angle degrees of 90 and 120.

• True

• False