First Bohr radius of an atom with $Z = 82$ is $R$. Radius of its third orbit is

Question

Dr. Abubacker · Accepted Answer

(a) Radius of Bohr’s orbit
$\ \ \ \ \ \ \ \ \ \ \ R_{n}$ = $\frac{A_{0}n^{2}}{Z}$
$\Rightarrow \ \ \ \ \ R_{n} \propto n^{2}$ (Z=constant)
$	herefore$ $\ \ \ \ \ R_{3}\  = \ 3^{2}R\  = \ 9R$

Q. First Bohr radius of an atom with $Z = 82$ is $R$. Radius of its third orbit is

Explanation

Reviewed by Dr. Abubacker

Want more practice?