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Solution: For an isoelectronic series of ions, the ion that is the sma...

Question

For an isoelectronic series of ions, the ion that is the smallest is always

1. the ion with the fewest protons.

2. the least positively (or most negatively) charged ion.

3. the ion with the highest atomic number.

4. the ion with the most neutrons.

5. the ion with the most electrons.