JEE Main2015ChemistryClassification of Elements and Periodicity in PropertiesActual
In the long form of the periodic table, the valence shell electronic configuration of 5 s 2 5 p 4 corresponds to the element present in:
Options
- AGroup 16 and period 5
- BGroup 17 and period 5
- CGroup 16 and period 6
- DGroup 17 and period 6
Correct answer
A. Group 16 and period 5
Step-by-step solution
A s   g i v e n ,   e l e c t r o n i c   c o n f i g u r a t i o n   o f   v a l e n c e   s h e l l   ( o u t e r m o s t   s h e l l )   i s   5 s 2   5 p 4 . . t h a t   m e a n s   p r i n c i p l e   q u a n t u m   n u m b e r   o f   v a l e n c e   s h e l l   i s   5 . . A s   w e   k n o w , p r i n c i p l e   q u a n t u m   n u m b e r   o f   v a l e n c e   s h e l l