In any period, the valency of an element with respect to oxygen

Question

In any period, the valency of an element with respect to oxygen (A) increases one by one from IA to VIIA (B) decreases one by one from IA to VIIA (C) increases one by one from IA to IVA and then decreases from VA to VIIA one by one (D) decreases one by one from IA to IVA and then increases from VA to VIIA one by one

Tardigrade Admin · Accepted Answer

Since oxygen is more electronegative element so it will form oxide with elements of group IA to VIIA in their maximum oxidation state. Maximum oxidation state is equal to number of valence electron in outermost shell . Hence it increases by one in any period.

Q. In any period, the valency of an element with respect to oxygen

increases one by one from IA to VIIA

decreases one by one from IA to VIIA

increases one by one from IA to IVA and then decreases from VA to VIIA one by one

decreases one by one from IA to IVA and then increases from VA to VIIA one by one

Since oxygen is more electronegative element so it will form oxide with elements of group IA to VIIA in their maximum oxidation state. Maximum oxidation state is equal to number of valence electron in outermost shell . Hence it increases by one in any period.