A hydrogen like atom (described by the Borh model) is observed to emit six wavelength, originating from all possible transitions between a group of levels. These levels have energies between - 0.85 eV and - 0.544 eV (including both these values). (a)Find the atomic number of the atom.
(b) Calculate the smallest wavelength emitted in these transitions.
( Take, hc = 1240 eV - nm, ground state energy of hydrogen atom =-13.6 eV)

Answer

(a) n= 12, Z = 3 (6) 4052 nm