Question

The first member of each group from 13 to 17 of the p–block elements differ in many respects from the other members of their respective groups because of:

• A. Small size
  
• B. High Electronegativity
  
• C. Absence of d–orbitals
  
• D. All of the above.

Answer 1

The correct option is D All of the above.

The first member of each group from 13 to 17 of the p–block elements differ in many respects from the other members of their respective groups because of small size, h​​​igh electronegativity, absence of d–orbitals