Chemistry - PERIODIC TABLE Question with Solution | TestHub

$\mathrm{B}$has a smaller first ionization enthalpy than$\mathrm{B}\mathrm{e}$. Consider the following statement:
(I) it is easier to remove$2\mathrm{p}$electron than$2\mathrm{s}$electron
(II)$2\mathrm{p}$electron of$\mathrm{B}$is more shielded from the nucleus by the inner core of electrons than the$2\mathrm{s}$electrons of$\mathrm{B}\mathrm{e}$
(III)$2\mathrm{s}$electron has more penetration power than$2\mathrm{p}$electron
(IV) atomic radius of$\mathrm{B}$is more than$\mathrm{B}\mathrm{e}$
(atomic number$\mathrm{B}:5, \mathrm{B}\mathrm{e}=4$)
The correct statements are.