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The observed wavelengths in the line spe...

The observed wavelengths in the line spectrum of hydrogen atom were first expressed in terms of a series by Johann Jakob Balmer, a Swiss teacher. Balmer's empirical formula is
`(1)/(lambda) = R_(H)[(1)/(2^(2)) - (1)/(n^(2))] = n = 3, 4,5…`
`R_(H) = 109678 cm^(-1)` is the Rydberg constant.
Niels Bohr derived this expression theoretically in 1913. The formula is a generalised to any on electron atom/ion.
Which of the following is not correctly matched ?

A

`H_(alpha)` - 6569 Å (Red)

B

`H_(beta)` - 4861 Å (Blue)

C

`H_(gamma)` - 4340 Å (Orange)

D

`H_(delta)` -4101 Å (Violet)

Text Solution

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The correct Answer is:
C
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The observed wavelengths in the line spectrum of hydrogen atom were first expressed in terms of a series by Johann Jakob Balmer, a Swiss teacher. Balmer's empirical formula is (1)/(lambda) = R_(H)[(1)/(2^(2)) - (1)/(n^(2))] = n = 3, 4,5… R_(H) = 109678 cm^(-1) is the Rydberg constant. Niels Bohr derived this expression theoretically in 1913. The formula is a generalised to any on electron atom/ion. The wavelength of first line of Balmer spectrum of hydrogen will be :

The observed wavelengths in the line spectrum of hydrogen atom were first expressed in terms of a series by Johann Jakob Balmer, a Swiss teacher. Balmer's empirical formula is (1)/(lambda) = R_(H)[(1)/(2^(2)) - (1)/(n^(2))] = n = 3, 4,5… R_(H) = 109678 cm^(-1) is the Rydberg constant. Niels Bohr derived this expression theoretically in 1913. The formula is a generalised to any on electron atom/ion. How many lines in the spectrum will be observed when electrons returns from 7th shell to 2nd shell ?

The observed wavelengths in the line spectrum of hydrogen atom were first expressed in terms of a seriesby Johamn Balmer a swiss teacher. Balmer.s empirical formula is : (1)/(lambda) = R_(H)[(1)/(2^(2))-(1)/(n^(2))]n=3,4,5 …. R_(H) = 109678 cm^(-1) is the Rydberg constant How many lines in the spectrum will be observed when electrons return from 7^(th) shell to 2^(nd) shell ?

(A) Balmer series lies in the visible region of electromagnetic spectrum (R): (1)/(lambda) = R((1)/(2^(2)) - (1)/(n^(2))) where n = 3,4,5

The wave number of limiting line in Balmer series of hydrogen atoms is

The ratio of longest wavelength line in the Balmer andaschen series of hydrogen spectrum is

Balmer series spectral lines are observed in visible region, in the spectrum of which of the following

The ratio of the wave lengths of the first line in the Lyman series of the spectrum of Hydrogen atom and the first line in the Balmer series of the spectrum of He^(+) is

The ratio of the wave lengths of the first line in the Lyman series of the spectrum of Hydrogen atom and the first line in the Balmer series of the spectrum of He^(+) is

AAKASH SERIES-ATOMIC STRUCTURE-Exercise On Passages
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  2. The observed wavelengths in the line spectrum of hydrogen atom were fi...

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  3. The observed wavelengths in the line spectrum of hydrogen atom were fi...

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  14. The hydrogen like species Li^(2+) is in a spherically symmetric state ...

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  16. Electronic configuration of multielectron atoms can be written by the ...

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  17. Electronic configuration of multielectron atoms can be written by the ...

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