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The energy levels of an atom of element ...

The energy levels of an atom of element X are shown in Fig. 20.2. Which one of the level transitions will result in the emission of photons of wavelength 620 nm ? Support your answer with mathematical calculations.

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SL ARORA-ATOMS, NUCLEI AND MOLECULES-Problems For Self Practice
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  13. Calculate the energy of the hydrogen atom in the states n = 4 and n = ...

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  14. Calculate (i) the radius of the second orbit of hydrogen atom, and (ii...

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  15. Calculate the frequency of the photon, which can excite the electron ...

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  16. The ground state energy of hydrogen atom is -13.6eV. If an electron ma...

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  17. Show that the ionisation potential of hydrogen atom is 13.6 volt.

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  18. Calculate the ionisation potential of a single ionised He-atom.

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  19. Calculate the minimum energy that must be given to a hydrogen atom so ...

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  20. What energy in eV will be required to excite the ground state electron...

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  21. By giving energy to a hydrogen atom in energy state n=1. If the potent...

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