There is a stained glass window into the structure of the Atom.
This window is the spectrum of colored lines given off when the atom is
excited. Like the neon lights of Las Vegas, each atom glows with a
characteristic set of colored lines. These colors are a reflection of
the unique electron arrangement about each atom. Electrons have characteristic
energies related to their position within the atom and it is these energies and
related colors that allow us to understand the electronic structure of the atom.
This exercise is intended to help you understand the energy levels in the
hydrogen atom in a much shorter time than the 15 years that it took
Johann Balmer.
We will try to duplicate Balmer's work by analyzing the experimental spectrum
of the hydrogen atom. The top frame will always contain a set of links to
each page in this tutorial. You can jump to these pages using these links
or follow the links in each page. The tutorial works only with versions of
Netscape 3 or larger. Also, the screens look the best if you first drag this
window to be as large as your screen will accept.
Lets begin by looking at the total spectrum
of the hydrogen atom, including lines in the ultraviolet and infrared regions
that your eye can not see.
First spectrum