Atoms, Ions, and Electrons flash card

Front

Atom definition

Back

Particle of an element; contains protons, neutrons, and electrons.

Front

Ion definition

Back

An atom or molecule with a positive or negative charge.

Front

Electron loss

Back

A positive ion (cation)

Front

Electron gain

Back

A negative ion (anion)

Front

Proton charge

Back

Front

Neutron charge

Back

No charge

Front

Electron charge

Back

Front

Group number in the periodic table

Back

equals the number of electrons in the outer shell

Front

Period number

Back

equals the number of electron shells

Front

Noble gases

Back

0; very unreactive due to a full outer shell.