The correct order of the decreasing ionic radii among the following isoelectronic species is
Ca2+>K+>S2−>Cl−
Cl−>S2−>Ca2+>K+
S2−>Cl−>K+>Ca2+
K+>Ca2+>Cl−>S2−
The order of ionic radii is same as the order of ratios of electrons to protons.
The correct order of the decreasing ionic radii among the following isoelectronic species is [CBSE A1PMT 2010]