Calculate the radius of `^70Ge`

Calcualte the radius of 70 G e .

Calcualte the radius of 70 G e .

Calculate the radius of the first Bohr orbit in the hydrogen atom. Hence calculate the radius of the second orbit.

Calculate the radius of the I^(st) Bohr orbit of He^(+)

Calculate the radius of the I^(st) Bohr orbit of He^(+)

Calculate the radius of smallest orbit of a hydrogen atom.