Question

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

• A. 6
• B. 15
• C. 30
• D. 10

Answer 1

Answer: (B)

15

Answer 2

: Maximum number of emission lines, $= \frac{n(n - 1)}{2}$

$= \frac{6(6 - 1)}{2} = \frac{30}{2} = 15$ lines