Unit Plan
CK-12 Foundation

Ck 12: Chemistry: Gold Foil Experiment: Rutherford's Atomic Model

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This site explains Rutherford's discovery of the nucleus and the planetary model of the atom and the role of gold foil experiment in refining the atomic model. It...
Unit Plan
CK-12 Foundation

Ck 12: Physical Science: Rutherford's Atomic Model

For Students 7th - 9th
[Free Registration/Login may be required to access all resource tools.] Rutherford's discovery of the nucleus and his planetary model of the atom.
Handout
Science Struck

Science Struck: James Chadwick's Atomic Theory and Its Lasting Impact

For Students 9th - 10th
Explains how James Chadwick came to develop his atomic theory by building upon the work of other scientists.