EdelmiraLiukko570 EdelmiraLiukko570

24-10-2014
Chemistry

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When an atom becomes an ion does its mass number change?

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Cheese34 Cheese34

24-10-2014

Its mass number does not change because the atom is losing or gaining electrons, so the change is almost not measurable because the electrons weigh so little.

In other words: its mass number does not change

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