Question

The correct order of radii is –
(a) Li < Be < Mg
(b) H⁺ < Li⁺ < H⁻
(c) Mn³⁺ < Mn²⁺ < Mn⁺⁷
(d) K⁺ > Cl⁻ > S²⁻

Answer 1

(a)Li<Be<Mg is the correct order of radii