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) Increase one by one from IA to IVA (D) Change randomly.

Tardigrade Admin · Accepted Answer

As we move along the period, an electron is subsequently added in the outer most shell of the elements and valency increases. However when the number of valence electrons is more than

4

, then the valency is given by -
Valency

=

group no.

- 8

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

Increase one by one from IA to IVA

Change randomly.

As we move along the period, an electron is subsequently added in the outer most shell of the elements and valency increases. However when the number of valence electrons is more than 4 , then the valency is given by - Valency = group no. −8

As we move along the period, an electron is subsequently added in the outer most shell of the elements and valency increases. However when the number of valence electrons is more than $4$ , then the valency is given by -
Valency $=$ group no. $- 8$