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Which of The Following represents an ion? (1point)
1) a particle having 14 protons , 14 neutrons, and 14 electrons
2)a particle having 9 protons , 9 neutrons, and 10 electrons
3)a particle having 19 protons , 21 neutrons, and 19 electrons
4)a particle having 1 protons , 3 neutrons, and 1 electrons

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meerkat18
For the set of number of subatomic particles given, we determine if it represents an ion if the number of protons and electrons are different. From the choices, only the 2nd choice has different number of electrons and protons. Further, that represent a negative ion as there are more electrons than protons. All the rest of the choices do not satisfy the conditions.

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