Question

A trend which is common to elements of both the group $1^{\text{st }}$ and group $17^{\text{th }}$, on going from top to bottom

• A. Boiling point increases
• B. Electron affinity increases
• C. Oxidising power increases
• D. Ionization energy decreses.

Answer 1

Answer: (D)

A trend which is common to elements of both the group $1^{\text{st }}$ and group $17^{\text{th }}$, on going from top to bottom is that the ionization energy decreases since the atomic size increases.