Covalent and VSEPR Theory

Front

What is the definition of a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

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 electron pairs in the valence shell of the central atom.

Front

What is the molecular geometry of a molecule with two bonding pairs and no lone pairs?

Back

Linear.

Front

What is the molecular geometry of a molecule with three bonding pairs and one lone pair?

Back

Trigonal Pyramidal.

Front

What is the molecular geometry of a molecule with two bonding pairs and two lone pairs?

Back

Bent.

Front

What is the chemical formula for a compound containing one phosphorus atom and five chlorine atoms?

Back

PCl₅.

Front

What is the chemical formula for sodium sulfide?

Back

Na₂S.

Front

What is the name of the compound with the formula CaF₂?

Back

Calcium Fluoride.

Front

What is the significance of lone pairs in determining molecular geometry?

Back

Lone pairs occupy space and repel bonding pairs, affecting the overall shape of the molecule.

Front

How does VSEPR theory help in predicting molecular shapes?

Back

VSEPR theory helps predict molecular shapes by considering the repulsion between electron pairs, which determines the arrangement of atoms in space.