MCQOPTIONS
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| 1. |
Which pair is isoelectronic? |
| A. | Ar and \[Cl\] |
| B. | \[\text{N}{{\text{a}}^{+}}\] and Ne |
| C. | \[\text{N}{{\text{a}}^{+}}\] and Mg |
| D. | Mg and Ne |
| Answer» C. \[\text{N}{{\text{a}}^{+}}\] and Mg | |