Question

Study the following outline of periodic table and identifying the periodic properties $A,B,C$ and $D$, select the correct option.

• A. A- Atomic radius ,B - Ionisation enthalpy ,C- Ionic radius ,D- Electronegativity
• B. A- Electronegativity ,B - Ionic radius ,C-Atomic radius ,D-Electron gain enthalpy
• C. A-Ionic radius ,B - Ionisation enthalpy ,C-Electronegativity ,D- Electron gain enthalpy
• D. A-Ionisation enthalpy ,B - Electron gain enthalpy ,C-Atomic radius ,D- Electronegativity

Answer 1

Answer: (D)

Ionisation enthalpy $(A)$, electron gain enthalpy $(B)$, atomic radius $(C)$ and electronegativity $(D)$ increases across a period from left to right, while atomic radius $(C)$ decreases.