Ernest Rutherford

Rutherford was one of the first researchers in nuclear physics, after the discovery of radiation by the French physicist Henri Becquerel in 1896. Rutherford discovered the radioactive half-life, and the three parts of radiation which he named Alpha, Beta, and Gamma. He also discovered that alpha particles were the nuclei of Helium. Rutherford's Geiger–Marsden experiment led to what we know today about the atomic structure, where the atom is a nucleus and electrons orbit around it.

In 1919, Rutherford made the world's first artificial nuclear reaction, where he put alpha particles with nitrogen gas and created particles of oxygen isotopes and protons. This was nuclear transmutation, changing nitrogen gas into oxygen gas.

Rutherford was the leader of the Cavendish Laboratory in Cambridge. He proved the existence of the nucleus and that is was composed of protons and neutrons. In 1932 James Chadwick made an experiment at the Cavendish Lab that showed Rutherford was right.

Rutherford College, a school in Auckland, New Zealand, was named after him.

• List of scientists from Oceania

 

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• The Rutherford Museum
• Rutherford Scientist Supreme
• Ernest Rutherford Archived 2008-07-23 at the Wayback Machine @ nobel.se
• "Ernest Rutherford 1871–1937". A Science Odyssey, pbs.org.