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The most probable radius (in pm) for finding the electron in He^+ is

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The most probable radius (in pm) for finding the electron in He+ is

(a) 0.0 

(b) 52.9

(c) 26.5 

(d) 105.8

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Best answer

Correct option (c) 26.5 

Explanation:

Most probable radius = a0/Z

where a0 = 52.9 pm. For helium ion, Z = 2

rmp = 52.9/2 = 26.45 pm

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