Question

If the radius of second electron orbit in hydrogen atom be r then the radius of the third orbit will be ______.

पर्याय

• 3r

• 2.25 r

• 9r

• ${\displaystyle \frac{\text{r}}{3}}$

Answer 1

If the radius of the second electron orbit in hydrogen atom be r then the radius of the third orbit will be 2.25 r.

Explanation:

Radius of third orbit of hydrogen atom r₃ = ${\displaystyle \frac{\text{r}\times 9}{4}}$ = 2.25 r