Nobel Media AB
The Nobel Prize: James Chadwick Nobel Lecture: The Neutron and Its Properties
Download and read James Chadwick's Nobel Lecture, entitled "The neutron and its properties," which is available in pdf format.
Nobel Media AB
The Nobel Prize: The Nobel Prize in Physics 1935 Presentation Speech
The Nobel Physics Chairman made this speech when presenting the Prize to Chadwick. It clearly explains the importance and depth of Chadwick's work. Site by Nobel e-Museum.
Other
History of Computing Project: James Chadwick
A really good scientific piece, adapted from American Institute of Physics. Some biographical information, but mostly on Chadwick's scientific discoveries, particularly the neutron.
Other
Siyavula Education: Everything Maths & Science: Models of the Atom
Discusses models of the atom developed by John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick. Includes clear illustrations and a short comprehension exercise at the end.
Texas Education Agency
Texas Gateway: Atoms, Elements and the Periodic Table: The Atomic Model [Pdf]
A slideshow looking at the contributions of scientists over time to our understanding of atomic theory. Looks at models of the atom developed by Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick, as...
University of Cambridge
University of Cambridge: Physics: The Neutron
This site provides a great series on the neutron discovered by James Chadwick. Includes a seven-page series that covers what is inside the nucleus, the elusive neutron, beryllium radiation, Chadwick's discovery, neutrons from beryllium,...
Tom Richey
Slide Share: Atomic Structure
Slideshow looking at the history of models of the atom, including those proposed by John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick. Discusses subatomic particles, including the numbers of protons, neutrons,...
Famous Scientists
Famous Scientists: James Chadwick
Read this article which describes the life and accomplishments of James Chadwick, the scientist that discovered the neutron.
Nobel Media AB
The Nobel Prize: James Chadwick Biographical
This sites provides a definitive biography of Chadwick presented by the Nobel (Prize) e-Museum.
Science Struck
Science Struck: The Structure of an Atom: A Labeled Diagram
Looks at the scientists who developed the model of the atom by building on previous scientists' discoveries about its structure.
PBS
Pbs: Chadwick and the Neutron
PBS provides a brief overview regarding Chadwick's discovery of the neutron.
Sophia Learning
Sophia: James Chadwick
This lesson explains the discovery of the neutron and Chadwick's experimental process.
Science Struck
Science Struck: James Chadwick's Atomic Theory and Its Lasting Impact
Explains how James Chadwick came to develop his atomic theory by building upon the work of other scientists.