1900-1915+(gk)

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 * J.J.Thompson
 * Born 1856, Died 1940
 * From Cheetham Hill, England
 * In 1903 it was announced that he discovered the electron. He discovered the electron through his original studies of the cathode rays.
 * He went to Owens College followed by Trinity College in 1880. He became a lecturer and later a Professor at Cambridge. He went to the United States in 1904 to deliver six lectures on electricity and matter at Yale University when he discovered the electron. He was knighted in 1908. And died with a wife and one daughter in 1940.
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 * Ernest Rutherford
 * Born 1871, Died 1937
 * From Nelson New Zealand
 * He discovered the nucleus in 1910. In 1910 he was investigating the scattering of alpha rays in radium. When he isolated a single alpha ray and noticed the way in which it scattered, he determined there must be a nucleus to make it scatter the way it does.
 * He grew up in New Zealand and went to University at Wellington. He started studying under J.J Thomson at Trinity University in 1894. He took the physics chair post at McGill in Canada in 1898. When studying under Thomson he quickly achieved discoveries. He further researched radioactive bodies when he was at McGill and later discovered an isotope of radon known as Thoron. He later returned to England where he discovered the Nucleus. He won the Nobel Prize. He had a wife and a sole daughter. He died in Cambridge on October 19th.


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 * Rutherford came up with it in 1911
 * Heavy atoms such as gold have a mass that is mostly concentrated in the central charge region
 * Heavy atoms are not deflected or moved at all by high speed alpha particles, which have a higher momentum than electrons
 * The electron clouds of the atom do not influence alpha particle scattering




 * Robert Milikan
 * 1868-1953
 * From Morrison, Illinois
 * Discovered the charge of the electron using the falling drop method in 1910.
 * He grew up in a rural part of Iowa. After high school he went to Oberlin College in Ohio in 1886. In 1891 he took a physics-teaching job in which he discovered his passion for physics, and got his masters in physics by 1893. He spent many years simplifying the teaching of physics and making textbooks. He later made his major discovery of the electron charge and the constant quantity for all electrons. He married Greta Blanchard in 1902 and they had three sons. He died in San Marino California in 1953.


 * Marie Curie
 * Born 1867, Died 1934
 * From Warsaw, Poland
 * With her Husband she discovered the isolation of Polonium. Their discovery of Polonium came from analyses of Becquerel’s discovery of Radioactivity. She later discovered methods of separating radium from large quantities of radioactive substances.
 * In 1891 she went to Paris to study Physics and Math and science. She met her husband Pierre in 1894 and they got married in 1895. she used her discovery of radium and its therapeutic properties to alleviate suffering throughout her lifetime. She was recognized by President Hoover who offered her $50,000 to purchase radium for studies. This was the first time a woman had ever been recognized for her work in a scientific field.
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