Ions

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions formed by the loss of electrons, while anions are negatively charged ions formed by the gain of electrons.

Front

What is the chemical formula for sodium oxide?

Back

Na₂O

Front

When are most atoms or ions stable?

Back

When they have 8 valence electrons.

Front

Why don't noble gases form ions?

Back

They already have a full valence energy level.

Front

What is the formula for copper (II) fluoride?

Back

CuF₂

Front

Elements on the LEFT side of the periodic table will most likely form:

Back

Positive ions.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.

Front

What is a stable ion?

Back

A stable ion is an ion that has a full outer electron shell, making it less likely to react with other atoms.