Q&A - Ask Doubts and Get Answers
Q

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

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

Answers (1)
Views

The number of lines produced when an electron from n^{th} shell drops to the ground state:

= \frac{n(n-1)}{2}.

According to the question, the maximum number of emission lines when the excited electron of an H atom in n=6 drops to the ground state will be:

\frac{6(6-1)}{2} = 15

These are produced because of the following transitions:

6\rightarrow5           6\rightarrow4           6\rightarrow3           6\rightarrow2             6\rightarrow1 

5\rightarrow4           5\rightarrow3           5\rightarrow2           5\rightarrow1             

4\rightarrow3           4\rightarrow2           4\rightarrow1                       

3\rightarrow2           3\rightarrow1                                   

2\rightarrow1                                             

Exams
Articles
Questions