The correct order of radii is:

CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties

Problem

The correct order of radii is: (1) N<Be<B\text{N} < \text{Be} < \text{B} (2) F−<O2−<N3−\text{F}^- < \text{O}^{2-} < \text{N}^{3-} (3) Na<Li<K\text{Na} < \text{Li} < \text{K} (4) Fe3+<Fe2+<Fe4+\text{Fe}^{3+} < \text{Fe}^{2+} < \text{Fe}^{4+}

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