Chemistry - PERIODIC TABLE Question with Solution | TestHub

${\mathrm{F}}^{-},{\mathrm{O}}^{2-}$and${\mathrm{N}}^{3-}$all are isoelectronic species in which${\mathrm{N}}^{3-}$have least number of protons due to which it's size increases as least nuclear attraction
is experienced by the outer shell electrons. Size order${\mathrm{N}}^{3-}>{\mathrm{O}}^{2-}>{\mathrm{F}}^{-}$