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caculate the wave number of spectral line of hydrogen atom in paschen series when electron jumpes from 5 th orbital

caculate the wave number  of spectral line of hydrogen atom in paschen series when electron jumpes from 5th orbital

Grade:11

1 Answers

Chhavi Jain
92 Points
6 years ago
Dear student,
 
paschen series means the electron will jump to the shell n=3  .
 Given :  ni = 5 ,  nf =3, Z=1
using the formula for wavenumber ---->
 
1/ λ = RH ( 1/ nf2  –  1/ ni)     ; RH is Rydberg constant
 
       = 109677 (  1/ 32   –  1/52 )
        
       = 7799.25 cm-1
 
Chemistry Consultant
Askiitians

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