What Did Ernest Rutherford Discover about the Atom?

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Ernest Rutherford, the famous nuclear physicist, discovered that the atom was not the smallest unit of mass. He discovered that atoms contained a nucleus, made of protons, neutrons and electrons. He also discovered that radioactive materials experience decay as time passed by.
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Ernest Rutherford was best known for establishing the theory of the nuclear atom, and is known as the father of nuclear physics.
He discovered the concept of radioactive half-life, along with other things, and was awarded the Nobel Prize in Chemistry in 1908.
Ernest Rutherford was born on August 30, 1871 and died on October 19, 1937. He was a physicist from New Zealand who found the first radioactive gas. He also found the positive nucleus in the atom that was surrounded by negative electrons. This was done through his well known gold foil experiment.
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