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If the following atoms and molecylates f...

If the following atoms and molecylates for the transition from `n = 2` to `n = 1`, the spectral line of minimum wavelength will be produced by

A

hydrogen atom

B

decterium atom

C

uni-ionized helium

D

di-ionized lithium

Text Solution

Verified by Experts

The correct Answer is:
D
`(1)/(lambda) = RZ^(2) ((1)/(1^(2)) - (1)/(2^(2)))`
For di-ionised lithium the value of `Z` is maximum.
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Knowledge Check

  • For the transition from n=2 to n=1 , which of the following will produce shortest wavelength ?

    A
    H atom
    B
    D atom
    C
    `He^(+) ion`
    D
    `Li^(2+)`ion

  • In each of the following atoms or ions, electronic transition from n = 4 to n = 1 take place. The frequency of the radiation emitted out will be minimum for

    A
    Hydrogen atom
    B
    Deuterium atom
    C
    `He^(+)` ion
    D
    `Li^(2+)` ion

  • There is transition from n=1 to n=2 and then n=2 to n=3, then

    A
    `deltaE` value as well as frequency are additive
    B
    wavelenght as well as frequency are additive
    C
    `DeltaE` values as well as wavelength are additive
    D
    all the parameters, (`DeltaE`, frequency and wavelength are additive
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    2. The Lyman series of hydrogen spectrum lies in the region :

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    3. Which one of the series of hydrogen spectrum is in the visible region ...

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    5. Let v(1) be the frequency of series limit of Lyman series, v(2) the fr...

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    7. In the figure of previous problem, D and E respectively represent

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    8. Which of the following is true?

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    9. Every series of hydrogen spectrum has an upper and lower limit in wave...

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    10. Energy levels A, B, C of a certain atom corresponding to increasing va...

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    11. An electron jumps from the 4th orbit to the 2nd orbit of hydrogen atom...

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    13. The following diagram indicates the energy levels of a certain atom wh...

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    19. The ratio of the frequenices of the long wavelength llmits of Lyman an...

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