1st - VSEPR & Hybridization Practice [Honors/IH]

Front

What is VSEPR theory?

Back

VSEPR (Valence Shell Electron Pair Repulsion) theory is a model used to predict the geometry of individual molecules based on the repulsion between the electron pairs in the valence shell of the central atom.

Front

What is hybridization in chemistry?

Back

Hybridization is the concept of mixing atomic orbitals to form new hybrid orbitals that can accommodate the bonding and lone pairs of electrons in a molecule.

Front

What molecular geometry is associated with sp hybridization?

Back

Linear geometry, with a bond angle of 180 degrees.

Front

What molecular geometry is associated with sp² hybridization?

Back

Trigonal planar geometry, with bond angles of 120 degrees.

Front

What molecular geometry is associated with sp³ hybridization?

Back

Tetrahedral geometry, with bond angles of approximately 109.5 degrees.

Front

What is the molecular shape of H₂O?

Back

Bent shape due to the two lone pairs on the oxygen atom.

Front

What is the molecular geometry of PBr₃?

Back

Trigonal pyramidal due to one lone pair on the phosphorus atom.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs occupy more space than bonding pairs, which can distort the bond angles and overall shape of the molecule.

Front

What is the bond angle in a tetrahedral molecule?

Back

Approximately 109.5 degrees.

Front

What is the bond angle in a trigonal planar molecule?

Back

120 degrees.