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Good News in History 27 February: James Chadwick discovers the neutron in 1932

On 27th February, 1932, the neutron was discovered by James Chadwick, a British physicist. It was a groundbreaking moment in the history of science.

Chadwick had been working on the problem of radiation for years. He knew that there must be some kind of neutral particle that could explain why certain types of radiation could penetrate matter without being deflected by the electric fields of atoms.

The discovery of the neutron was a really important discovery because it helped us understand how atoms work. We learned that atoms are made up of even smaller particles: protons, neutrons, and electrons.

In 1935 Chadwick was awarded the Nobel Peace Prize for the discovery.

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