Given below are two statements :

Statement I : $\mathrm{C}<\mathrm{O}<\mathrm{N}<\mathrm{F}$ is the correct order in terms of first ionization enthalpy values.

Statement II : $\mathrm{S}>\mathrm{Se}>\mathrm{Te}>\mathrm{Po}>\mathrm{O}$ is the correct order in terms of the magnitude of electron gain enthalpy values.

In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements :

Statement I : The correct order in terms of atomic/ionic radii is Al > Mg > Mg²⁺ > Al³⁺.

Statement II : The correct order in terms of the magnitude of electron gain enthalpy is Cl > Br > S > O.

In the light of the above statements, choose the correct answer from the options given below :

Which of the following represents the correct trend for the mentioned property?

A. F > P > S > B      - First Ionization Energy

B. Cl > F > S > P      - Electron Affinity

C. K > Al > Mg > B      - Metallic character

D. K₂O > Na₂O > MgO > Al₂O₃      - Basic character

Choose the correct answer from the options given below :

The atomic number of the element from the following with lowest 1^st ionisation enthalpy is :