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Identify the correct pairing of the energy formula listed in Column I.

1. (a) (III) (i) (Q)
2. (b) (III) (ii) (R)
3. (c) (III) (iii) (S)
4. (d) (III) (iv) (P)

Correct answer: (b) (III) (ii) (R)

Solution

The energy formula in Column I matches the atomic energy expression corresponding to entry (ii) in Column II, labeled (R). Such questions test recognition of standard formulas used in atomic structure.

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