Question

Why do the topmost elements (II period elements) show anomalous properties?

• A. They are small in size
• B. They do not possess d-orbitals
• C. They have high ionization energy, and high electronegativity.
• D. Abundance of those elements in the Earth's crust is high.

Answer 1

Answer: (A), (B), (C)

The correct options are
A They are small in size
B They do not possess d-orbitals
C They have high ionization energy, and high electronegativity.

Elements like (Li, Be, B, C, N, O, F) show anomalous properties because of their small size, high ionization energy. They also do not have a d-orbital.