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NCERT Class XI Chemistry Structure of Atom Solutions

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Question : 15
Total: 67
What is the maximum number of emission lines when the excited electron of a H atom in n = 6 drops to the ground state?
Solution:  
Maximum number of emission lines =
n(n−1)
2
=
6(6−1)
2
 =
30
2
 = 15 lines
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