MCQOPTIONS
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MCQOPTIONS
| 1. |
Which electronic configuration corresponds to an element of group IIIA ? |
| A. | 1s2 2s2 2p3 |
| B. | 1s2 2s2 2p6 3s2 3p1 |
| C. | 1s2 2s2 2p4 |
| D. | 1s2 2s2 2p6 3s2 3p6 4s2 3d1 |
| Answer» C. 1s2 2s2 2p4 | |