How does an atom become a positive ion? a negative ion?
2 answers:
So ions are atoms that have either gained or lost electrons to complete their energy levels.
In order for a positive ion to be formed, an atom must lose electrons.
In order for a negative ion to be formed, an atom must gain electrons.
When an atom loses and electron, it loses a negative charge and then becomes a positive ion.
So the ions of atom becomes a negative and they lose ions
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