Honors Chem Molecular Geometry with VSEPR & MOT

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 the molecular shape of CO2?

Back

CO2 has a linear shape due to the arrangement of its two double bonds with oxygen atoms around the central carbon atom.

Front

What is the bond angle in a tetrahedral molecule?

Back

The bond angle in a tetrahedral molecule is approximately 109.5°.

Front

What is the molecular geometry of H2O?

Back

H2O (water) has a bent molecular geometry due to the two lone pairs of electrons on the oxygen atom, which repel the hydrogen atoms.

Front

What does it mean for a molecule to be polar?

Back

A polar molecule has a net dipole moment due to the presence of polar bonds and an asymmetrical shape, leading to an uneven distribution of electron density.

Front

What is the bond angle in H2S?

Back

The bond angle in H2S is approximately 104.5°.

Front

What is the shape of BF3?

Back

BF3 (boron trifluoride) has a trigonal planar shape due to the three bonding pairs of electrons around the boron atom.

Front

What is the significance of empty orbitals in determining magnetism?

Back

Molecules with unpaired electrons in empty orbitals are typically magnetic, while those with all electrons paired are not.

Front

What is the molecular geometry of PCl5?

Back

PCl5 (phosphorus pentachloride) has a trigonal bipyramidal geometry due to the five bonding pairs of electrons around the phosphorus atom.

Front

What is the shape of SiS2?

Back

SiS2 (silicon disulfide) has a linear shape due to the arrangement of its double bonds with sulfur atoms.