Tuesday 2 July 2013

What is the maximum number of emission lines when the excited electron of an H atom in n = 6 drops to the ground state?

Question 2.15: What is the maximum number of emission lines when the excited electron of an H atom in n = 6 drops to the ground state?
Answer

When the excited electron of an H atom in n = 6 drops to the ground state, the following transitions are possible:

Hence, a total number of (5 + 4 + 3 + 2 + 1) 15 lines will be obtained in the emission spectrum.
The number of spectral lines produced when an electron in the nth level drops down to the ground state is given by
 .
Given,
n = 6
Number of spectral lines

 = 15

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