The ratio of radii of the and Bohr's orbits of a hydrogen atom is: — Atomic Structure Chemistry Question
Question
The ratio of radii of the $3^{rd}$ and $2^{nd}$ Bohr's orbits of a hydrogen atom is:
Answer: C
💡 Solution & Explanation
The radius of a Bohr orbit $r_n \propto n^2$. Therefore, the ratio $r_3/r_2 = 3^2/2^2 = 9/4$.
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