Chapter 8, Problem 8C.2BE

Interpretation Introduction

Interpretation:

The wavelength, frequency and wavenumber of the $n=5\to n=4$ transition in ${\text{Li}}^{\text{2+}}$ has to be calculated.

Concept introduction:

On passing an electrical discharge through gaseous hydrogen, the ${\text{H}}_{\text{2}}$ molecules get dissociated and the excited $\text{H}$ atoms and hydrogen like atoms produce electromagnetic radiation in the form of spectral lines.