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13-01-2018
Chemistry

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Explain what happens when an atom gains or looses an electron

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13-01-2018

When an atom gains an electron it becomes a negatively charged ion. When an atom looses an electron it becomes positively charged because the number of positively charged protons.

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13-01-2018

also the mass of the atom will increase or decrease
->depending on whether you add
or take away electrons

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