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Question

In Bohr's atomic model, an electron jumps from n=1 to n=3, how much energy will be absorbed?

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Solution

When an electron jumps from from one orbitals to another orbital the energy absorbed or released is given by,
hν=En3En1
Now, En=13.6n2eV
En1=13.6eV and En3=1.5eV
Therefore, hν=12.1eV
Hence, 12.1eV amount of energy is absorbed during transition from first orbitals in third orbital.

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