Ions & Ionic Bonding

Front

To form a charge of +2 an atom must _ electrons. To form -3 it must _ electrons.

Back

Lose 2; Gain 3

Front

If an oxygen atom has 8 protons (+) and 10 electrons (-), what is its charge?

Back

O²⁻

Front

What is the name given to the outermost electron(s)?

Back

Valence electrons

Front

Atoms that gain electrons become...

Back

Negatively charged

Front

An atom that has gained or lost electrons is called ...

Back

An ion

Front

What is an ion?

Back

An atom that has gained or lost electrons, resulting in a charge.

Front

What charge does an atom have if it has more electrons than protons?

Back

Negative charge

Front

What charge does an atom have if it has more protons than electrons?

Back

Positive charge

Front

What are cations?

Back

Positively charged ions that lose electrons.

Front

What are anions?

Back

Negatively charged ions that gain electrons.