Question

Which of the following property decreases along the $2^{nd}$ group from left to right?

• A. Ionization energy
• B. Metallic character
• C. Electronegativity
• D. Non metallic character
• E. None of the above

Answer 1

Answer: (B)

Metallic character

The metallic character of elements decreases along the periods from left to right. On moving across the period from left to right, the effective nuclear charge increases. The nucleus is holding onto the valence electron more strongly and more energy is required to release an electron. Therefore, metallic character decreases.
Non metallic character, ionization energy and electronegativity increases from left to right in a period.