Highly selective Backlog Qs for JEE MainChemistryClassification of Elements and Periodicity in Properties
To which group and period does the element belong if the electronic configuration of an element in its -2 oxidation state is 1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 ?
Options
- Aperiod 3, group 16
- Bperiod 3, group 17
- Cperiod 4, group 16
- Dperiod 4, group 17
Correct answer
A. period 3, group 16
Step-by-step solution
Electronic configuration =1 s^2, 2 s^2, 2 p^6, 3 s^2, 3 p^6=16 electrons Sulphur (Z=16) refer to group 16 and period 3 . Sulphur show -2 oxidation state.