MCQOPTIONS
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| 1. |
If the valency shell electronic structure for an element is \[n{{s}^{2}}n{{p}^{5}}\], this element will belong to the group of [CBSE PMT 1992] |
| A. | Alkali metals |
| B. | Inert metals |
| C. | Noble gases |
| D. | Halogens |
| Answer» E. | |