Lecture Notes on Atomic Structure and Molecular Geometry

These flashcards cover key concepts related to atomic structure, molecular geometry, bonding, and the VSEPR theory based on lecture notes.

What is an atom's formal charge?

The difference between the number of valence electrons in an isolated atom and the number of electrons assigned to that atom in a Lewis structure.

What is the approximate bond angle of a linear molecular geometry?

180°.

What type of molecular geometry is associated with four bonded pairs and no lone pairs?

Tetrahedral.

What is the bond angle for a trigonal planar geometry?

120°.

How is the polarity of individual bonds referred to?

Bond moment.

What does VSEPR stand for?

Valence Shell Electron Pair Repulsion theory.

What molecular geometry corresponds to an arrangement of AB5E?

Octahedral pyramidal.

What is the molecular geometry when there are four bonded pairs and two lone pairs on the central atom?

Octahedral planar.

What is the bond angle of a trigonal bipyramidal structure at the equatorial position?

120°.

What does the dipole moment represent?

The polarity of the molecule.