- #1
gildomar
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Homework Statement
"A gas discharge tube contains H 1 , H2, He 3 , He4, Li6, and Li7 ions and atoms (the superscript
is the atomic mass), with the last four ionized so as to have only one electron. (a)
As the potential across the tube is raised from zero, which spectral line should appear
first? (b) Give, in order of increasing frequency, the origin of the lines corresponding to the
first line of the Lyman series of H 1 ."
Homework Equations
The Attempt at a Solution
I have no problem with part (a), but I don't quite get what they're asking for in part (b).