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A positive ion having just one electron ...

A positive ion having just one electron ejected it if a photon of wavelength `228Å` or lose is absorbed by it identify the ion

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The correct Answer is:
`[He^(+1)]`
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PHYSICS GALAXY - ASHISH ARORA-ATOMIC PHYSICS-Unsolved Numerical Problems
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  5. Demonstrate that the frequency omega of a photon emerging when an elec...

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  6. Find the quantum number n corresponding to the excited state of He^(+)...

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  7. (a) Find the maximum wavelength lambda(0) of light which can ionize a ...

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  17. A hydrogen atom in a having a binding of 0.85eVmakes transition to a s...

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  18. A hypothetcal, hydrogen like atom consists of a nucleus of mass m(1) a...

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