194?? One question
Dear student,
Considering option (A), we have H+< H < H- . This is because H+ is just a proton, and H- has largest ionic radii due to high repulsion among 2 electrons.
In case of other options the elements are isoelectronic ( identical number of electrons), hence ionic radii increases with decrease in charge. Hence,
Al3+ < Mg2+ < Na+ < F- < O2- < N3-
Considering option (A), we have H+< H < H- . This is because H+ is just a proton, and H- has largest ionic radii due to high repulsion among 2 electrons.
In case of other options the elements are isoelectronic ( identical number of electrons), hence ionic radii increases with decrease in charge. Hence,
Al3+ < Mg2+ < Na+ < F- < O2- < N3-
Hence none of the option is correct. There is some error in the options.
Regards