Which one of the following depict the correct representation of atomic radius(r) of an atom?
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Ans (b)
Sol. Atomic radius is the distance between the centre of the nucleus to the outer most shell which contains electrons.
We can see that in figure (ii) and (iii), correct representation is shown.
Hence option (b) is correct.