Who were Hans Geiger and Ernest Marsden?
1 Answer
Johannes Geiger (30 September 1882) was a German physicist. He is perhaps best known as the co-inventor of the Geiger counter and for the Geiger–Marsden experiment which discovered the atomic nucleus. Geiger was born at Neustadt an der Haardt, Germany.
Sir Ernest Marsden19 February 1889) was an English-New Zealand physicist. While still an undergraduate he conducted the famous Geiger–Marsden experiment, called the gold foil experiment, together with Hans Geiger in 1909 under Rutherford's supervision.
Maybe you have to know something about Geiger-Mardsen experiment:
The Geiger–Marsden experiment (also called the Rutherford gold foil experiment) was a landmark experiment by which scientists discovered that every atom contains a nucleus where its positive charge and most of its mass is concentrated. They deduced this by observing how alpha rays are scattered when they pass through a thin metal foil. The experiment was performed in 1909 by Hans Geiger and Ernest Marsden, under the direction of Ernest Rutherford at the Physical Laboratories of the University of Manchester.
