Front

What is valency?

Back

Valency is the measure of an atom's ability to bond with other atoms, determined by the number of electrons in its outer shell.

Front

What is an ionic compound?

Back

An ionic compound is a chemical compound formed by the electrostatic attraction between oppositely charged ions.

Front

What is the formula of an ionic compound formed from Lithium and Oxygen?

Back

Li₂O

Front

What happens to an atom when it loses an electron?

Back

It becomes a positively charged ion.

Front

What happens to an atom when it gains an electron?

Back

It becomes a negatively charged ion.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that can participate in chemical bonding.

Front

How do you determine the charge of an ion?

Back

The charge of an ion is determined by the difference between the number of protons and electrons in the atom.

Front

What is the charge of a cation?

Back

A cation has a positive charge.

Front

What is the charge of an anion?

Back

An anion has a negative charge.

Front

What is the significance of valency in chemical reactions?

Back

Valency determines how atoms combine to form compounds and the types of bonds they can form.