Atomic StructureHard
Question
The wavelength of the first line of Lyman series for hydrogen atom is equal to that of thesecond line of Balmer series for a hydrogen like ion. The automic number Z of hydrogenlike ion is
Options
A.3
B.4
C.1
D.2
Solution
The wavelength of the first line of lyman series for hydrogen atom is

The wavelength of the second line of Balmer series for hydrogen line ion is

According to question λ = λ′
⇒
or
or Z2 = 4 or Z = 2

The wavelength of the second line of Balmer series for hydrogen line ion is

According to question λ = λ′
⇒

or
or Z2 = 4 or Z = 2Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
The Kα X-ray emission line of tungsten occurs at λ = 0.021 nm. The energy difference between K and L levels in...If elements which principle quantum number n > 4 were not allowed in nature, the number of possible elements would be...Highly energetic electrons are bombarded on a target of an element containing 30 neutrons. The ratio of radii of nucleus...In a material medium, when a positron meets an the electrons both particles annihilateleading to the emission of two gam...A transistor is used common emitter mode as an amplifier, then...