If the $IP$ of $Na$ is $5.48 \, eV$,the ionisation potential of $K$ will be ............ $eV$.

Which of the following represents the correct order of increasing first ionization enthalpy for $Ca, Ba, S, Se$ and $Ar$?

The correct order of $IE_2$ (second ionization enthalpy) is:

The correct trend in the first ionization enthalpies of the elements in the $3^{rd}$ period of periodic table is:

The correct order of the second ionization energy of $C$,$N$,$O$,and $F$ is :-

The first ionization potential $(IP)$ of $Be$ $(Z=4)$ is higher than which of the following elements?
$(a) B (Z=5)$
$(b) Mg (Z=12)$
$(c) Li (Z=3)$
$(d) Al (Z=13)$
$(e) K (Z=19)$