Question

Arrange ions in order of increasing size o--,n---.

Answer 1

The term isoelectronic means that the ions possess the same number of electrons. For example, each ion in the series O2–, F–, Na+, Mg2+, and Al3+ has 10 electrons arranged in a 1s22s22p6 electron configuration like that of neon. The nuclear charge in this series increases steadily in the order listed.

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