" b.The group with valency zero."

Write the names from the description: The group with valency zero.

The valency is zero for

Oxidation number of an element can be zero but valency is never zero.

Name the element with reference to the elements of the modern periodic table. The group whose elements show zero valency.

Name or state with reference to the elements of the modern periodic table. The group whose elements have zero valency.

Which member of group 13 does not exhibit the group valency in its compounds?

Which member of group 13 does not exhibit the group valency in its compounds?