Solving 1.11 [ENDORSED]

[Tina Wen 1G]

1.11 In the spectrum of atomic hydrogen, several lines are generally classi ed together as belonging to a series (for example, Balmer series, Lyman series, Paschen series), as shown in Figs. 1.10 and 2.1. What is common to the lines within a series that makes grouping them together logical?
What would be a proper explanation for the grouping principle?

[Chris Qiu 1H]

Grouping these waves into series is helpful because it allows the waves to be categorized by energy levels. i.e Lyman's series are all ultraviolet, Paschen's lie in infrared.

[Chem_Mod]

The final state which ends up is different for the series that are named. Lyman ends in n =1 for example.

[alexagreco1A]

I agree with these responses, but another way to put it is that the principal quantum number is the same for each of these lines, so Lyman- n=1, Balmer- n=2, etc.