X-Ray
Spectroscopy and The Development of the Periodic Table
Classroom Applications
When discussing subatomic
particles, the word negligible has been thrown around. This lesson will
show that electrons are anything but negligible. This is a three part
lesson. The first part of the lesson focuses on how electrons are
related to the atomic structure of elements through bright line
spectra. The second part of the lesson explores the bright line spectra
of hydrogen and the Bohr model of the atom to quantitatively measure
the wavelength of the characteristic bright line specta. The third part
of the lesson confirms the characteristic bright line spectra through
the use of the flame test experiment. The same wavelength that is seen
in the spectroscopy should be visible in the flame of the elements that
are being tested. It should show the wavelength of potential energy
released when the excited electron returns to the ground state.
Spectroscopy Lesson Plan:
[pdf] [doc]
Student Data Sheet:
[pfd] [doc]