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Find the value of wave number (overset-v...

Find the value of wave number `(overset-v)` in terms of Rydberg's constant, when transition of electron takes place between two levels of `He^(+)` ion whose sum is 4 and difference is 2.

A

`(8R)/(9)`

B

`(32R)/(9)`

C

`(3R)/(4)`

D

none of these

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Calculate the wavelength emitted during the transition of an electron in between two level of Li^(2+) ion whose sum is 4 and difference is 2

The only element in the hydrogen atom resides under ordinary condition on the first orbit .When energy is supplied the element move to hjgher energy ornbit depending on the lower of energy absioerbed .When this electron to may of the electron return to any of the lower orbits, it emit energy Lyman series is formed when the electron to the lowest orbit white Balmer series ids formed when the electron returns to the second orbit similar Paschen Brackett, and Pfund series are formed when electron return to the third fourth , and fifth arbit from highest energy orbits, respectively Maximum number of liner produced is equal when as electron jumps from nth level to ground level is equal to (n(n - 1))/(2) If teh electron comes back from the energy level having energy E_(2) to the energy level having energy E_(1) then the difference may be expresent in terms of energy of photon as E_(2) - E_(1) = Delta E, lambda = hc//Delta E Since h and c are constants Delta E coresponding to definite energy , thus , each transition from one energy level to unother will produce a light of definite wavelem=ngth .This isd actually observed as a line in the spectrum of hydrogen atom Wave number of line is given by the formula bar v = RZ^(2)((1)/(n_(1)^(2))- (1)/(n_(12)^(2))) Where R is a Rydherg constant The wave number of electromagnetic radiation emitted during the transition of elecvtron in between the two levels of Li^(2+) ion whose pricipal quantum numbner sum is 4 and difference is 2 is

The wave number of electromagnetic radiations emitted during the transition of electron in between two levels of Li^(2+) ion having sum of the principal quantum numbers 4 and difference is 2 ,will be: ( R_(H) = Rydberg constant )

The angular momentum of an electron in a Bohr's orbit of He^+ is 3.1652 xx 10^-34 kg-m^2//sec . What is the wave number in terms of Rydberg constant (R ) of the spectral line emitted when an electron falls this level to the first excited state. ["Use" h = 6.626 xx 10^-34 Js] .

The angular momentum of an electron in a Bohr's orbit of He^(+) is 3.1652xx10^(-34) kg- m^(2) /sec. What is the wave number in terms of Rydberg constant (R ) of the sepectral line emitted when an electron falls from this level to the first excited state.l [ Use h =6.626xx10^9-34) Js]

Find the quantum number n corresponding to the excited state of He^(+) ion, if on transition to the ground state that ion emits two photons in succession with wave lengths 108.5 and 30.4 nm .

NARENDRA AWASTHI-ATOMIC STUCTURE-Exercise
  1. Multiple or fine structure of spectral lines is due to :

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  2. Whith increasing principal quantum number, the energy difference betwe...

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  3. Find the value of wave number (overset-v) in terms of Rydberg's consta...

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  4. What is the wavelength in nm of the spectral line associated with a tr...

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  5. What is the energy (kJ/mol) associated with the de-excitation of an el...

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  6. What is the shortest wavelength line in the Paschen series of Li^(2+) ...

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  7. What is the maximum wavelength line in the Lyman series of He^(+) ion?

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  8. Which of the following electron transitions in a hydrogen atom will re...

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  9. Which electronic transition in a hydrogen atom, starting from the orbi...

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  10. The hydrogen atom in the ground state is excited by mass of monochroma...

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  11. Electromagnetic radiation (photon) with highest wavelength result when...

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  12. When an electron jumps from L to K shell -

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  13. How do the energy gaps between successive electron energy levels in a...

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  14. The H-spectrum confirms

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  15. The splitting of spectral lines in an external magnetic field is known...

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  16. The pressure of colloidal particles of dust in air imparts blue colour...

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  17. In photoelectric effect, the number of photoelectrons emitted is propo...

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  18. Slope of V(0) vs v curve is (where V(0)= Stopping potential, v=subject...

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  19. According to Einstein's photoelectric equation, the graph between kine...

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  20. The photoelectric emission from a surface starts only when the light i...

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