Atomics

Atomic Emission

Virtual Laboratory


Abstract

Welcome to the AtomicEmission system!

24-Sep-97

The AtomicEmissions system is a set of applets which can be used to demostrate electron state changes in an atom and photonic emission.

On these pages you will find links to various instances of the AtomicEmissions system of applets.


Interactive control

With interactive control the user can place an electron in a state and observe the state changes and the photons emitted. The user imparts energy onto an electron by selecting a higher state for the electron the begin at. Then the user selects a lower state, which begins a cascading series of automatic state changes, with a photon being emitted at each energy level, until the ground state is reached. At this point the user may repeat the exercise.

The display of waves will be removed:

See the HTML sourcecode for an explanation of the tags for modifying the behavior of the applet, and for more details on the implementation of the applet, see the README file.

Following this link will take you to an instance of the Interactive applet


Automatic generation

An automatic generation system is a set of three applets which can be used to generate a spectral analysis graph of a given atom. The user selects a wavelength for a monochromatic lightsource, which emits photons which the atom absorbs; for each photon absorbed, the electron then automatically begins a series of state changes, emitting photons, until the ground state is reached. Each photon emitted is registered by a graph, which counts the number of occurances of each wavelength. This generates a spectrum.

To reset the graph, click on the graph and all entries will be removed.

See the HTML sourcecode for an explanation of the tags for modifying the behavior of the applet, and for more details on the implementation of the applet, see the README file.

Following this link will take you to an instance of the AutoEmitter system


Applet coding by Sean Russell Graphic images by Amy McGrew Content and direction by Greg Bothun, phd