Question

The radius of which of the following orbit is same as that of first orbit of hydrogen atom?
a) He+ (n=2) b) Li²+ (n=2) c) Li³+ (n=3) d) Be³+ (n=2)
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Class 11th (for 1 Mark)​

Answer 1

Answer:

d

Be+3

Radius = 0.529 n^2/Z A°

Radius Of Hydrogen

n = 1

z = 1

R = .529 A°

Check By option

Be

n = 2

Z = 4

R = .529 × 4/4

R = .529

Thanks for Reading