Ions

Front

Anions are...

Back

Negative ions that have gained electrons.

Front

An atom becomes _______ when it loses electrons.

Back

Positive.

Front

Noble gas elements (Group 18)

Back

Never form ions.

Front

The octet rule ...

Back

Describes what elements do to be more stable.

Front

Elements in group 17 have how many valence electrons?

Back

7.

Front

What is an ion?

Back

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

Front

What are cations?

Back

Positive ions that have lost electrons.

Front

What is the charge of a sodium ion (Na+)?

Back

Positive.

Front

What is the charge of a chloride ion (Cl-)?

Back

Negative.

Front

What does the term 'valence electrons' refer to?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.