Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureSpectrumEasy2 minPYQ_2014

ChemistryEasysingle choice

The wave number of the limiting line in Lyman series of hydrogen is $109678 cm^{- 1}$ . The wave number of the limiting line in Balmer series of $He^{+}$ would be :

Options:

Answer:

Solution:

$R_{H} = 109678 cm^{- 1}$ Wave number of the limiting line in Balmer series of $He^{+}$ $= R_{H} \cdot Z^{2} [\frac{1}{n _{1}^{2}} - \frac{1}{n _{2}^{2}}] = 109678 \times (2)^{2} [\frac{1}{[ 2 ) ^{2}} - \frac{1}{\infty}] = 109678 cm^{- 1}$

Stream:BITSATSubject:ChemistryTopic:Atomic StructureSubtopic:Spectrum

⏱ 2mℹ️ Source: PYQ_2014

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