Ions and Valence Electrons

Front

What are ions?

Back

Ions are atoms that have an electric charge due to the loss or gain of one or more electrons.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight valence electrons, achieving a stable electron configuration.

Front

What are valence electrons?

Back

Valence electrons are the electrons located in the outermost energy level of an atom, which are involved in chemical bonding.

Front

How do ions form?

Back

Ions form when atoms gain or lose electrons, resulting in a positive charge (cation) or a negative charge (anion).

Front

What is a cation?

Back

A cation is a positively charged ion that forms when an atom loses one or more electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion that forms when an atom gains one or more electrons.

Front

How many valence electrons do Group 1 elements have?

Back

Group 1 elements have 1 valence electron.

Front

How many valence electrons do Group 17 elements have?

Back

Group 17 elements have 7 valence electrons.

Front

What happens to the size of an atom when it becomes a cation?

Back

When an atom becomes a cation, it loses electrons and the size of the atom decreases.

Front

What happens to the size of an atom when it becomes an anion?

Back

When an atom becomes an anion, it gains electrons and the size of the atom increases.