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Hydrogen Spectrum - Practice Questions & MCQ

Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

Quick Facts

  • Line spectrum of hydrogen is considered one the most difficult concept.

  • 15 Questions around this concept.

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The wavelength (in nm) of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state 1, would be 

Concepts Covered - 1

Line spectrum of hydrogen

Line Spectrum of Hydrogen-like atoms

\frac{1}{\lambda }= RZ^{2}\left ( \frac{1}{n_{1}^{2}}-\frac{1}{n_{2}^{2}} \right )

Where R is called Rhydberg constant, R = 1.097 X 107,  Z is atomic number

n1= 1, 2, 3….

n2= n1+1, n1+2 ……

Lyman Series spectrum:

Where

n1= 1 and  n2= 2, 3, 4....

This lies in Ultraviolet region.

Balmer Series Spectrum:

Where n1= 2 and  n2= 3, 4, 5, 6....

It lies in visible region.

Paschen, Bracket and Pfund Series spectrums:

these lies in Infrared Region.

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Line spectrum of hydrogen

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Line spectrum of hydrogen

Chemistry Part II Textbook for Class XI

Page No. : 44

Line : 50

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