Question

ratio of radius of first orbit of He+ ion to the first orbit of hydrogen atom is​

Answer 1

Answer:

The radius are in the ratio 6:3:2

The radius of the first orbit of hydrogen like ion are given by the equation:

r=$\frac{h^{2} }{Zm_{e}k_{e}e^{2}   }$

so then the formula is

r=$\frac{k}{Z}$

The ratios of the three radius for Z=1, 2 and 3

$r_{1} :r_{2} :r_{3} =\frac{1}{1} :\frac{1}{2} :\frac{1}{3}$

=6:3:2