By gaining or losing an electron.
A good rule of thumb is that metals lose electrons to become positively charged cations, and non metals gain electrons to become negatively charged anions.
It becomes whenever it gains one or more electron.
what does an atom have in common with an ion?
what does an atom have in common with an ion?
An ion is a positively or negatively charged atom or molecule.
An ion is an atom with a positive or negative charge.
ion
The loss or gain of electrons transform an atom in an ion.
If the number of protons and neutrons are the same, its an atom, if not its an ion
An atom is called an ion if there is a charge on it - positive or negative.
A ion is an electrically charged atom, positive or negative.
When an atom gets charged it is called ion.
atom