Cosmic Exploration · discovery

The Neutron

1932 · James Chadwick

Description
A neutral particle of roughly proton mass, which explained isotopes at a stroke and made everything in nuclear physics after it possible.
Year
1932

Discoverer

Referenced by

researcher

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From the Discoveries database in Notion, last edited 2026-08-15. This page is the row, rendered by the build; nothing on it is written by hand.