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 charge does an atom with 5 valence electrons typically have?

Back

An atom with 5 valence electrons typically has a charge of -3 when it gains 3 electrons.

Front

How many electrons does a nitrogen ion gain or lose if it has 5 valence electrons?

Back

A nitrogen ion with 5 valence electrons will gain 3 electrons.

Front

What is the symbol for a bromine ion that gains 1 electron?

Back

The symbol for a bromine ion that gains 1 electron is Br⁻.

Front

What charge does iodine have with 7 valence electrons?

Back

Iodine with 7 valence electrons typically has a charge of -1.

Front

What charge does fluorine have with 7 valence electrons?

Back

Fluorine with 7 valence electrons typically has a charge of -1.

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 cation?

Back

A cation is a positively charged ion that has lost one or more electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion that has gained one or more electrons.

Front

How do you determine the charge of an ion based on its valence electrons?

Back

The charge of an ion can be determined by the number of valence electrons it has: if it has 4 or fewer, it typically loses electrons; if it has 5 or more, it typically gains electrons.