ATOMIC SHELLS

Objective: Record and interpret the Balmer series of lines for hydrogen other line spectra in the visible region The line spectra of light-emitting atoms are uniquely characteristic for each specific chemical element, although they become ... more

Objective: Carry out high-precision measurements of absorption and emission lines The resolution of a spectrometer is often assessed in terms of whether the two sodium D-lines can be distinguished. This experiment uses a digital spectrometer ... more

•  Record and evaluate the Franck-Hertz curve for neon and observe emission of light. •  Compare the distribution of current maxima with the excitation energies of neon atoms. •  Observe the light ... more

•  Record and evaluate the Franck-Hertz curve for neon and observe emission of light. •  Compare the distribution of current maxima with the excitation energies of neon atoms. •  Observe the light ... more

Objective: Record and interpret the Balmer series of lines for hydrogen other line spectra in the visible region The line spectra of light-emitting atoms are uniquely characteristic for each specific chemical element, although they become ... more

•  Measure the collector current IR as a function of the accelerating voltage UA. •  Compare the positions of the current maxima with the known critical potentials of the helium atom. •  Identify ... more