The number of spectral lines that are possible when electrons in $7^{t h}$ shell in different hydrogen atoms return to the $2^{n d}$ shell is

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 15
No. of spectral lines = $\frac{n (n + 1)}{2}$
n = difference of orbit of higher energy and lower energy
$= \frac{5 (5 + 1)}{2} = 15$

Suggest Corrections

Similar questions

The number of spectral lines that are possible when electrons in fourth energy level in different hydrogen atoms returns to the ground state is

7^{t h}

1^{s t}

7^{t h}

1^{s t}

Join BYJU'S Learning Program