Question

The first member of the p-block elements differs from the remaining members of their corresponding groups due to :

• A. small size and absence of d-orbitals
• B. diagonal relationship with other elements
• C. difference in ability to form double and triple bonds
• D. high ionisation enthalpy

Answer 1

The correct option is A small size and absence of d-orbitals

Answer:- (A) small size and absence of d-orbitals

Because of their smaller size and absence of d-orbitals the first member of p-block elements possess different properties from the remaining members of their corresponding group.

Thus, (A) is correct answer.