The first $I.P.$ of $Mg$ is ...... than $Al$.

The first,second and third ionisation energies ($E_1, E_2$ and $E_3$) for an element are $7 \ eV$,$12.5 \ eV$ and $42.5 \ eV$ respectively. The most stable oxidation state of the element will be

The ionization potential of sodium is $5.48 \ eV$. The $I.P.$ of potassium is ............. $eV$

The successive $5$ ionisation energies of an element are $800, 2427, 3658, 25024$ and $32824 \ kJ/mol$,respectively. By using the above values,predict the group in which the above element is present:

The third ionisation enthalpy is highest in

Amongst the following elements with their electronic configurations given below,which one has the highest ionization energy?