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| 1. |
Elements A, B, C and Dhaveatomicnumbers12, 19, 29and 36respectively . On thebasisof electronic configurationwriteto which group of theperiodictableeach element belongs. |
| Answer» Solution :A (Z= 12 ) = GROUP2 , B(Z= 19) = Group1 , C (Z = 29 )= Group11 ANDD (Z = 36 ) = GROUP18 ` | |