Question

What is the wavelength (in nm) of the spectral line
associated with a transition from n = 3 to n = 2 for
Li2+ ion (R = 109677 cm-¹)?​

Answer 1

Lemda= { 1/ n² - 1/ n² } × R× Z²

=> { 1/ 4 - 1/9} × 9 R

=>. 5 / 36 × 9 R

=> 5 R/ 4

= > 4/ 5R

hope it helps !!

thanks !!

here R is Redburg constant value => 109700cm-1

Answer 2

Explanation:

here is your answer!!

Lemda= { 1/ n² - 1/ n² } × R× Z²

=> { 1/ 4 - 1/9} × 9 R

=>. 5 / 36 × 9 R

=> 5 R/ 4

= > 4/ 5R

hope it helps !!

thanks !!

here R is Redburg constant value => 109700cm-1