According to the Bohr model of a hydrogen atom, the frequency of light radiated by an electron moving from an orbit n1 to an orbit n2corresponds to the energy level difference betweenn1 and n2 of
E=E0(1n21),
where
E0=me
and where me is the electron mass, Z is the atomic number, e is the magnitude of the electron charge, is the permittivity of free space, and ?is Planck's constnt divided by 2?. In the case of hydrogen (Z=1) E0=?13.6eV.
a. Find the frequency of light f radiated by an electron moving from orbit n1=2 to n2=1 inside of a He+ ion.
b. In the Bohr model of hydrogen, the radius of the nth orbit is defined as