Question

The correct order of radii is/ are
(A) Ca 2+ < Na + < K + < Ba 2+
(B) F – < Cl – < H – < I –
(C) N 3– < O 2– < F –
(D) Ge 4+ < Sn +4 » Pb +4

Answer 1

Answer:

b is the right answer

Explanation:

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Answer 2

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The correct option is option d)

this is because, lead (Pb), although is a metal, when it loses four electrons, the effective nuclear charge  becomes so high that the radius shrinks drastically