Question

radius of the bohr 1st orbit of H-atom is 0.53A° Radius of the bohr 1st orbit of He+ion is​

Answer 1

Answer:

Radius,R = $\frac{an^{2} }{Z}$

So, for He atom R = $\frac{0.53 X 1^{2} }{2}$ = $\frac{0.53}{2}$ = 0.265A°