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John Dalton
John Dalton came up with the Gas law which is otherwise known as 'Dalton's Law' which states that the total pressure excreted by a gaseous mixture is equal to the sum of partial pressures of each component. John Dalton also came up with the atomic theory which is still valid in this day and age. RESOURCES:
www.famousscientists.org
www.iun.edu/~cpanhd/C101wbnotes/compoition/dalton.html -
Madam Marie Curie
Marie Curie has discovered two chemical elements which are Radium and Polonium. She was one of the first people who carried out Radiation treatment for Tumours and she is the founder of 'Curie Institutes' which are very important research centres. Curie is the only person to win two Nobel Prizes which were in Chemistry and Physics. She discovered that Uranium Rays charged the air they passed through and could conduct electricity. RESCOURCES:
www.famousscientists.org/
www.nobelprize.org/ -
Ernest Rutherford
Ernest Rutherford has achieved many things in the field of physics and has contributed quite a lot the the Atomic Theory. Ernest Rutherford had marked out a brand new branch of physics called 'Radioactivity'. He discovered a detector for electromagnetic waves and he uncovered that radioactivity was an action of an element which had spontaneously disintegrated into atoms of a completely different element which still remained radioactive. RESOURCES:
www.famousscientists.org
www.nobelprize.org -
Henry Moseley
Henry Moseley's discoveries helped get a more accurate positioning of the elements on the periodic table, He (Henry Moseley) discovered the relationship between wavelength and atomic number and he also developed the application of the x-ray spectra so we would be able to study the atomic structure and how it works. RESOURCES:
http://www.chemistry.co.nz/henry_moseley.htm
www.famousscientists.org -
Niels Bohr
Niels Bohr is one of the most influential and dominant physicist of the twentieth century, he made a model of the atomic structure which soon became the basis of the Quantum Theory. Niels Bohr also identified the Uranium Isotope. However, he also advocated nuclear energy in Copenhagen, Denmark. Niels also worked with Sir J.J. Thomson and Professor Ernest Rutherford. RESOURCES:
www.famousscientist.org/
www.nobelprize.org/ -
Francis Aston
Francis Aston has discovered 2 Isotopes (which is a non-radioactive element) . He invented the mass spectrograph which he then used to locate twelve naturally occurring Isotopes. Francis Aston also founded the so called 'Whole number rule'. Which is when the mass of an oxygen isotope is equal to a whole number. RESOURCES:
www.nobelprize.org/
www.chemistry.about.com/famouschemists/p/francis-aston/bio.htm -
J.J Thomson
J.J. Thomson did not discover anything. However, he did expand the electromagnetic field theories which were developed by James Maxwell in 1865. J.J. Thomson also revolutionised the study of gaseous conductors of electricity as well as the nature of cathode rays (a cathode is negatively charged electrode, rays are emitted from the cathode). RESOURCES:
www.famousscientists.org
www.nobelprize.org -
James Chadwick
James Chadwick has studied the Atomic Nucleus with Ernest Rutherford who both believed that particles with no charge could be in the nucleus. Chadwick has in fact discovered the neutron. He did this by using a Gamma Ray. He had heard that other scientists had used it to eject protons from wax which he didn't believe that the Gamma Ray was strong enough. However, he applied this theory and discovered the neutron. RESOURCES:
www.famousscientists.org/
www.nobelprize.org/ -
Erwin Schrodinger
Erwin Schrodinger was a Austrian physicist . However, Schrodinger was an artillery officer in World War One this was before he became a physicist. Erwin Schrodinger was the discoverer of the Wave Equation, this was discovered in 1926. The Wave Equation explains how the Quantum state of a physical system can change over the course of time. RESOURCES:
www.nobelprize.org/
www.famousscientists.org/ -
Murray Gell-Mann
Murray Gell Mann introduced the concept of 'Strangeness' which is a quantum property and the force that holds components of the atomic nucleus. Murray Gell Mann also discovered the omega minus particle. He soon became a member of the faculty of the California institute of technology and the Robert Andrews Millikan Professor of Theoretical Physics. RESOURCES:
www.famousscientists.org
www.nobelprize.org
