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This type of atom is formed by the loss or gain of electrons.

Retry Correct Incorrect An ion is an atom or molecule whose electric charge is dependent on the loss or gain of electrons. The charge is both equal and opposite to a proton.

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David Becker/Getty Images

David Becker/Getty Images

This type of atom is formed by the loss or gain of electrons.

• Neutron
• Ion
• Isotope
• Proton