James Chadwick Atomic Theory

Updated March 23, 2017

James Chadwick proved the existence of neutrons in 1932, according to Book Rags. As uncharged particles in atoms, neutrons play a key part in nuclear fission, or the splitting of atoms.

Atomic Nucleus

Chadwick's research greatly increased understanding of the structure of the atomic nucleus, according to the Nobel Prize website. Before his discovery, scientists knew of the existence of protons in the nucleus, but not neutrons.

Nuclear Fission

Unlike protons and electrons, neutrons have no electrical charge. This means the charged particles of other elements cannot prevent them from penetrating and splitting their nuclei.

Atomic Bomb

Chadwick won the 1935 Nobel Prize in Physics, according to Book Rags. His work led to the fission of uranium 235, and the subsequent development of the atomic bomb.

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About the Author

Lexa W. Lee is a New Orleans-based writer with more than 20 years of experience. She has contributed to "Central Nervous System News" and the "Journal of Naturopathic Medicine," as well as several online publications. Lee holds a Bachelor of Science in biology from Reed College, a naturopathic medical degree from the National College of Naturopathic Medicine and served as a postdoctoral researcher in immunology.