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The radius of the first (lowest) orbit of the hydrogen atom is a0. The radius of the second (next higher) orbit will be : |
4a0 6a0 8a0 10a0 |
4a0 |
$r_n \propto n^2$ $ \frac{r_2}{r_1} = \frac{2^2}{1^2} = 4$ $ r_1 = a_0 \Rightarrow r_2 = 4 a_0$ |
