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The energy-level scheme for the hypothet...

The energy-level scheme for the hypothetical one electron element Bansalium is shown in figure. The potential energy is taken to be zero for an electron at an infinite distance from the nucleus.

A sample of atoms Bansalium are in all the 3 excited state shown above. What is the possible wavelength that can be emitted by atom in visible range?

A

414 nm

B

620 nm

C

124 nm

D

920 nm

Text Solution

Verified by Experts

The correct Answer is:
A
`n=4rightarrow 3 E=3eV`
`Rightarrow lambda =1242/3=414` nm
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