Question

24. If the radius of inner most electronic orbit of a hydrogen atom is 5.3 * 10~n m, then the

radii of n = 2 orbits is

(a) 1.12 Å

(b) 2.12 Å

(c) 3.22 Å

(d) 4.54 Å​

Answer 1

your answer is 'b'

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