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John Dalton
Dalton made an Atomic theory list and stated it at the Royal Institute in 1803 which we still use for two centuries and eleven years today. He stated that: 1. All matter is made of atoms, atoms are indivisible and indestructible. 2. All atoms of a given element are identical in mass and properties. 3. Compounds are formed by a combination of two or more different kinds of atoms. And 4. A chemical reaction is a rearrangement of atoms. -
John Dalton photo and bibliographies
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Francis Aston photo and bibiliographies
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Francis Aston
Francis Aston, he discovered x-rays and radioactivity in the mid 1890’s. In the first world war he did further research on providing experimental proof on isotopes by using the mass spectroscopy. In 1912 he got accepted into becoming a member of the international committee on atomic weights and throughout being in this committee his work soon made the whole number rule. -
J.J Thompson photo and Bibliographies
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J.J Thompson Contributions to the Atomic theory
In 1897 he was the first scientist to find out that the fundamental unit was over 1000 times smaller than an atom, saying that it was a subatomic particle which we now call an electron. Also in 1905 he discovered the natural radioactivity of potassium. The following year he pointed out that hydrogen had only a single electron per atom. -
Marie Curie information, photo and bibliography
Marie researched radioactivity, she was the first woman to win a Nobel prize (1903), then she went on being the first person to win in multiple sciences and win in two fields. Marie is well known for her achievements of: techniques for isolating radioactive isotopes, and the discovery of two elements, polonium and radium. http://en.wikipedia.org/wiki/Marie_Curie)http://www.aip.org/history/curie/unstable.htm -
Ernest Rutherford photo and bibliographies
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Ernest Rutherford
He describes the atomic theory as having a central positive nucleus surrounded by negative orbiting electrons. In 1911 he performed an experiment to test the plum pudding model. His atomic model description of the structure of atoms. In 1910 - 1911 he made a simplified plan of his gold foil experiment. -
Henry Moseley photo and bibliographies
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Henry Mosely
Henry Mosely a man who experimented mostly with metal invented the atomic battery in 1912 and the year following 1913 that he observed and measure the x-ray spectra of some element’s but manly what he really enjoys which is metal. And during that year he also changed the places from where cobalt and nickel were on the periodic table. He changed them to where they are sitting now which are numbers 27 and 28. -
Niels Bohr information, photo and bibliography
Niels was involved in studying quantum physics leading to his Nobel Prize in Physics in 1922. Studying the structure of atoms he worked with other Nobel Prize recipients. He also discovered electrons travel in different obits around the nucleus, and chemical element Bh on the periodic Table of Elements in named after him. Encyclopedia Britannica
http://www.livescience.com) -
James Chadwick
James won a Nobel Prize in Physics in 1932 for his discovery of a Neutron, He was knighted for the work and research he had done in Physics. His work and research on neutrons became a major lead into fighting against cancer. Which is a huge accomplish to the world these days. http://en.wikipedia.org/wiki/James_Chadwick
http://jameschadwickatomictheory.weebly.com/ -
Erwin Schrödinger information, photo and bibliographies
Erwin won a Nobel Prize in 1933 “He was the author of many works in various fields of physics: statistical mechanics and thermodynamics, physics of dielectrics, color theory, electrodynamics, general relativity, and cosmology, and he made several attempts to construct a unified field theory.” http://en.wikipedia.org/wiki/Erwin_Schr%C3%B6dinger
http://www.nobelprize.org/nobel_prizes/physics/laureates/1933/schrodinger-facts.html -
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Murray Gell-Mann
Murray’s work was on particle physics, which is the smallest object that make up the universe. He made new terms for study such as “eightfold way” which is a classification system of particles and “quark” which particles were composed of even smaller particles. In 1969 he received the Nobel prize for physics. 1996-2004 American Academy of Achievement.
