Chemistry

Problem

Calculate, within the framework of the Bohr model, a numerical value for the following ratio: a. (i)

\dfrac{r_{3\,(\text{H})}}{r_{2\,(\text{Li}^{2+})}}

, where

r_{3\,(\text{H})}

is the radius of the third orbit of a hydrogen atom and

r_{2\,(\text{Li}^{2+})}

is the radius of the second orbit of a doubly-ionised lithium ion (

Z=3

). b. (ii) Comment briefly on the physical meaning of the magnitude of the ratio obtained.