Ions

Front

What is an ion?

Back

A charged atom that has lost or gained one or more electrons.

Front

What happens to an atom when it gains electrons?

Back

It becomes negatively charged.

Front

Which particles are responsible for changing the charge of an atom?

Back

Electrons.

Front

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

Back

+3.

Front

What happens to an atom when it loses electrons?

Back

It becomes positively charged.

Front

Define cation.

Back

A positively charged ion formed when an atom loses electrons.

Front

Define anion.

Back

A negatively charged ion formed when an atom gains electrons.

Front

What is the role of valence electrons in ion formation?

Back

Valence electrons determine how an atom will bond and whether it will gain or lose electrons.

Front

What is the charge of a sodium ion (Na+) after it loses one electron?

Back

+1.

Front

What is the charge of a chloride ion (Cl-) after it gains one electron?

Back

-1.