VSEPR (Molecular Shapes)

What primarily determines the size and boundaries of an atom?

• The number of protons in the nucleus

• The mass of the atom

• Electron-electron repulsion

• The number of neutrons

How many electron domains are present on the central sulfur atom in a sulfur dioxide (SO2) molecule?

• One

• Two

• Three

• Four

What is the molecular shape of Boron Trihydride (BH3)?

• Linear

• Bent

• Trigonal Planar

• Tetrahedral

What is the molecular geometry and bond angle of methane (CH4)?

• Tetrahedral, 90°

• Trigonal planar, 120°

• Tetrahedral, 109.5°

• Linear, 180°

What is the molecular geometry and approximate bond angle of ammonia (NH3)?

• Trigonal planar, 120°

• Trigonal pyramidal, 106.7°

• Tetrahedral, 109.5°

• Bent, 104.5°

A three-atom molecule with no lone pairs on its central atom will have what molecular geometry and bond angle?

• Bent, 120°

• Linear, 180°

• Trigonal planar, 120°

• Tetrahedral, 109.5°

What is the molecular geometry and approximate bond angle of water (H2O)?

• Linear, 180°

• Trigonal planar, 120°

• Bent, 104.5°

• Trigonal pyramidal, 106.7°