Chapter 2 2022/2023

a) Sketch an energy level diagram to show the first five lines involved when electron fall between energy level in the Lyman series. Determine the wavelength of the radiation that emits the highest frequency for this series. 

[6 Marks]  

b) An atom X has proton number of 13. Determine the number of electron(s) in an orbital with the quantum number, l=0. Draw the orbital(s) of the valence electron(s) with l=1 . 

[4 Marks]