Unit 5 Vocabulary

Front

What is the simplest ratio of ions represented in an ionic compound?

Back

Formula unit.

Front

What is an oxyanion?

Back

A polyatomic ion that contains oxygen and one or more other elements.

Front

What is lattice energy?

Back

The energy required to separate one mole of the ions of an ionic compound, related to the size and charge of the ions.

Front

What does an electrolyte do?

Back

Conducts electricity in water.

Front

What is a crystal lattice?

Back

A three-dimensional geometric arrangement of particles where each positive ion is surrounded by negative ions and vice versa.

Front

Define ionic compound.

Back

A compound formed by the electrostatic attraction between positive and negative ions.

Front

What is the significance of the formula unit in ionic compounds?

Back

It represents the simplest whole-number ratio of ions in the compound.

Front

How does the size of ions affect lattice energy?

Back

Smaller ions typically result in higher lattice energy due to stronger electrostatic forces.

Front

What is the role of charge in determining lattice energy?

Back

Higher charges on ions lead to greater lattice energy due to increased electrostatic attraction.

Front

What is the difference between a molecular compound and an ionic compound?

Back

Molecular compounds consist of molecules held together by covalent bonds, while ionic compounds consist of ions held together by ionic bonds.