23-24 Molecular Geometry Honors Chem

Front

What is electronic geometry?

Back

The spatial arrangement of electron groups around a central atom, which determines the molecular shape.

Front

What is the electronic geometry around a carbon atom with four single bonds?

Back

Tetrahedral.

Front

Define trigonal planar geometry.

Back

A molecular shape where a central atom is bonded to three other atoms, all in the same plane, forming a 120-degree angle.

Front

What is the shape of a molecule with one central atom bonded to three atoms and one lone pair?

Back

Trigonal pyramidal.

Front

What is the difference between polar and nonpolar molecules?

Back

Polar molecules have an uneven distribution of charge due to differences in electronegativity, while nonpolar molecules have an even distribution of charge.

Front

What is a lone pair of electrons?

Back

A pair of valence electrons that are not shared with another atom and are localized on a single atom.

Front

What molecular shape is formed when there are two bonded atoms and two lone pairs on the central atom?

Back

Bent.

Front

What is the significance of bond angles in molecular geometry?

Back

Bond angles determine the spatial arrangement of atoms in a molecule, affecting its shape and properties.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs repel bonded pairs more strongly, altering the bond angles and overall shape of the molecule.

Front

What is the molecular shape of a molecule with four bonded atoms and no lone pairs?

Back

Tetrahedral.