Atomic StructureHard
Question
The difference between the wave number of 1st line of Balmer series and last line of paschen series for Li2+ ion is :
Options
A.
B.
C.4R
D.R/4
Solution
For 1st line of Balmer series
= RH(3)2
= 9R 
R
For last line of Pachen series
= RH(3)2 = 9R RFor last line of Pachen series
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