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Energy in the second energy state of hyd...

Energy in the second energy state of hydrogen atom is `E_2`. Then

A

energy in the third energy state of `He^(+)` ion (Z=2) is `4/9 E_2`

B

energy in the ground state `He^(+)` ion (Z=2) is `16 E_2`

C

energy in the third energy state of `Li^(2+)`ion (Z=3) is `4E_2`

D

energy in the second energy state of `Li^(2+)` ion (Z=3) is `9E_2`

Text Solution

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The correct Answer is:
B, C, D
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