Atomic StructureHard
Question
In a hydrogen like atom in which every atom is in a particular excited state. Now a stream of photons of energy 
E0 bombarded into it and is absorbed by the hydrogen like atom and subsequently its emission spectrum shows 10 different lines in which some lines have energy less than E0 and some lines have energy more than E0 and some lines have energy equal to E0. (Where E0 is ionization energy of hydrogen atom in ground state).
E0 bombarded into it and is absorbed by the hydrogen like atom and subsequently its emission spectrum shows 10 different lines in which some lines have energy less than E0 and some lines have energy more than E0 and some lines have energy equal to E0. (Where E0 is ionization energy of hydrogen atom in ground state).Options
A.The final quantum no. of electron in the atom is 5
B.The initial quantum no. of electron in the atom is 3
C.Atomic no. of the atom is 2
D.None of these
Solution
As emission spectrum of the atom shows 10 different lines, so the highest excited state of the electron is n = 5.
As some lines have energy less then
E0 and some have more than E0 and some have equal toit. So initial state of electron can be n = 2 or n = 3.
Again if initial level is n = 2, then Z2
- Z2
E0, Z is in fraction (not possible)
If n = 3, then
Z2
- Z2
E0, Z = 2
As some lines have energy less then
E0 and some have more than E0 and some have equal toit. So initial state of electron can be n = 2 or n = 3.Again if initial level is n = 2, then Z2
- Z2E0, Z is in fraction (not possible)If n = 3, then
Z2
- Z2E0, Z = 2Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
Light of wavelength 4000 is incident on a metal plate whose work function is 2eV.What is maximum kinetic energy of emitt...During a nuclear fusion reaction...A stationary hydrogen atom of mass M emits a photon corresponding to the first line of lyman series. If R is the Rydberg...A electron in the hydrogen atom jumped from excited state n to the ground state. The wavelength so emitted illuminates a...When an electron-positron pair annihilates, the energy released is about...