PURPOSE: Model of energy levels in the atom.

DESCRIPTION: This model has four levels with the appropriate number of electrons for each level: 2, 8, 8, then 18 for the top level. The spacing between each higher level is less, as in the actual electron energy level spacing. In the photograph above, the first level is filled, the second level has three electrons, and one electron has been excited into the next level; this would represent a carbon atom in its lowest excited state.

SUGGESTIONS: Use it as a nuclear energy level model for protons and neutrons.

REFERENCES: (PIRA 7B50.10)

EQUIPMENT: Atomic energy level model with superball electrons.

SETUP TIME: None.