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What would be the radius of second orbit...

What would be the radius of second orbit of `He^(+)` ion?

A

` 1.058 ` Å

B

` 3.023 ` Å

C

2.068 Å

D

4.458 Å

Text Solution

Verified by Experts

The correct Answer is:
A
` r = ( n ^ 2 ) / ( Z) xx 0.529 `
For ` He ^+ , n = 2 , Z = 1 `
` r = ( 4 ) / (2) xx 0.529 `
` = 1.058 Å `
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