Question

what may be the maximum and minimum number of emission transitions between energy level n =5 to n=1​

Answer 1

Answer:

Here is your answer hope it will help you

Explanation:

When the excited electron of an H atom (n=1) in n = 6 drops to the ground state, the following transitions are possible:

The number of spectral lines:

n(n−1)/2

where n=6

Hence the total number of spectral line will be:

6×5/2

=15