According to Bohr's theory, the radius of the $n^{th}$ orbit of a hydrogen-like atom with atomic num

Question

According to Bohr's theory, the radius of the $n^{th}$ orbit of a hydrogen-like atom with atomic number $Z$ is proportional to:

Professor PC Thomas Classes · Answer

The orbital radius $r_n = \frac{n^2 h^2 \epsilon_0}{\pi m Z e^2}$, which means the radius is directly proportional to $n^2$ and inversely proportional to $Z$.