The radius of which of the following orbit is same as that of the first Bohr's orbit of hydrogen atom?
A) He+ (n=2)
B) Li2+ (n=2)
C) Li2+ (n=3)
D) Be3+ (n=2)
where n=orbit ...?

Respuesta :

Since the n^2/Z values are same for second orbit of Be^3+ and first orbit of H, their radii are also equal. Answer is option A.

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