Question

using bohr atomic model,drive expression for calculating the radius of orbits in He+

Answer 1

according to bohr theory ,
r=n^2h^2/4π^2mkZe^2
if we write in short form ,
e.g. r=(0.529)(n^2/Z) angustrum
now ,
radius of He+ nth orbit =(0.529)(n^2/2) A