Question
${ }_4 Be ,{ }_6 C ,{ }_8 O ,{ }_5 B ,{ }_{13} Al$ Which is the most electropositive element among these?
| Elements | Electronic configuration |
| (i) $_4Be$ | $2, 2$ |
| (ii) $_6C$ | $2, 4$ |
| (iii) $_8O$ | $2, 6$ |
| (iv) $B$ | $2, 3$ |
| (v) $_{11}Al$ | $2, 8, 3$ |
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