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 a sodium ion carry?

Back

+1

Front

What are anions?

Back

Anions are negatively charged ions.

Front

What charge does a nitrogen ion have?

Back

-3

Front

If an element has 3 valence electrons, what charge will its ion likely have?

Back

+3

Front

What is a cation?

Back

A cation is a positively charged ion.

Front

How do you determine the charge of an ion from its position in the periodic table?

Back

Elements in groups 1 and 2 typically form cations with charges equal to their group number, while elements in groups 15, 16, and 17 typically form anions with charges equal to 8 minus their group number.

Front

What is the charge of a chloride ion?

Back

-1

Front

What happens to an atom when it loses an electron?

Back

It becomes a positively charged ion (cation).

Front

What happens to an atom when it gains an electron?

Back

It becomes a negatively charged ion (anion).