Column I lists the electronic configurations of certain elements, while Column II provides their electron gain enthalpy values. Match each electronic configuration with the appropriate electron gain enthalpy:
| Column-I (Electron configuration) |
Column-II (Electron gain enthalpy/ kJ mol¯1) |
||
| A. | \(1 s^2 2 s^2 2 p^6\) | (i) | \(-53\) |
| B. | \(1 s^2 2 s^2 2 p^6 3 s^1\) | (ii) | \(-328\) |
| C. | \(1 s^2 2 s^2 2 p^5 \) | (iii) | \(-141\) |
| D. | \( 1 s^2 2 s^2 2 p^4 \) | (iv) | \(+48\) |
| Options: | A | B | C | D |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (iv) | (i) | (iii) | (ii) |
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