Fluorine is a stronger oxidising agent than chlorine in aqueous solution. This is attributed to many factors except

The atomic numbers of the metallic and non-metallic elements which are liquid at room temperature respectively are

Which elements are classified as metalloids? Name them.

The correct order of the non-metallic character among the elements $B, C, N, F$ and $Si$ is

The periodic table consists of $18$ groups. An isotope of copper,on bombardment with protons,undergoes a nuclear reaction yielding element $X$ as shown below. To which group,element $X$ belongs in the periodic table?
${}_{29}^{83}Cu + {}_{1}^{1}H \rightarrow 6{}_{0}^{1}n + {}_{2}^{4}\alpha + 2{}_{1}^{1}H + X$

Match List-$I$ with List-$II$.

List-$I$ (Oxide)	List-$II$ (Nature)
$A. Cl_2O_7$	$I. Amphoteric$
$B. Na_2O$	$II. Basic$
$C. Al_2O_3$	$III. Neutral$
$D. N_2O$	$IV. Acidic$

Choose the correct answer from the options given below: