Question

Calculate the no.of emission lines when electron jumps from 5th energy level to 1st energy level

Answer 1

Answer:

Explanation:

6

Answer 2

Answer:

n2 = 5, n1 = 1

[(5-1)(5-1+1)]/2 = 10 spectral lines.

Explanation:

When the number of spectral lines from level n2 to n1 is asked, use formula:

• For a given sample of H atoms:

[(n2-n1)×(n2-n1+1)]/2 spectral lines

• If only one atom of hydrogen is considered:

(n2-n1) spectral lines.