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  Democritus was an ancient Greek philosopher primarily remembered today for his formulation of an atomic theory
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  Isaac Newton was an English mathematician, astronomer, author and physicist who is widely recognized as one of the most influential scientists of all time, and a key figure in the scientific revolution.
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  John Dalton was a English Chemist, Physicist and meteorologist He is best known for introducing the atomic theory into chemistry.
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  Michael Faraday was a British scientist who contributed to the study of electromagnetism and electrochemistry.
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  Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements
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  Joseph John Thomson was an English physicist and Nobel Laureate in Physics, credited with the discovery and identification of the electron; and with the discovery of the first subatomic particle.
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  Ernest Rutherford was a New Zealand-born British physicist who came to be known as the father of nuclear physics.
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  was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory.
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  James Chadwick was a British physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941.