Which of the following is arranged in order of increasing radius?

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Problem

Which of the following is arranged in order of increasing radius? (1) K+(aq)<Na+(aq)<Li+(aq)\text{K}^+ (\text{aq}) < \text{Na}^+ (\text{aq}) < \text{Li}^+ (\text{aq}) (2) Na+(aq)<K+(aq)<Li+(aq)\text{Na}^+ (\text{aq}) < \text{K}^+ (\text{aq}) < \text{Li}^+ (\text{aq}) (3) K+(aq)<Li+(aq)<Na+(aq)\text{K}^+ (\text{aq}) < \text{Li}^+ (\text{aq}) < \text{Na}^+ (\text{aq}) (4) Li+(aq)<Na+(aq)<K+(aq)\text{Li}^+ (\text{aq}) < \text{Na}^+ (\text{aq}) < \text{K}^+ (\text{aq})

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