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John Dalton
The atomic theory was proposed by John Dalton in 1803. His theory was that the atoms of different elements could be renowned by the difference in their weight. This theory led the way into new experiments. In 1794 John Dalton presented his findings on colour blindness in which he says that “shortage in colour perception was caused by discoloration of the liquid medium in the eyeball”. -
J.J. Thomson
In 1897 Joseph John Thomson showed that cathode rays were made from an unknown negatively charged particle so he is credited with the discovery of the electron and in 1904 he suggested a model for the atom. In 1906 he was awarded with the Nobel prize in physics for his work in the conduction of electricity in gases. -
Marie Curie
“Marie Curie was the first woman to win a Nobel Prize, the only woman to win in two fields and the only person to win in mutiple sciences”-Wikipedia. She conducted the research on radioactivity. She created the theory of radioactivity. She discovered two elements which are polonium and radium and she found techniques for isolating radioactive isotopes. -
Ernest Rutherford
He was known as the father of nuclear physics. He discovered the concept of radioactive half-life and also created the alpha and beta radiation. In 1911 he theorized that atoms have a very small nucleus. When he passed away in 1937 the chemical element rutherfordium was named after him. -
Francis Aston
In 1903 Francis Aston discovered the occurrence of Aston dark space. In 1909 when Aston was working as an assistant to Sir.J.J Thomson he discovered two isotopes for the gas neon. He created the ‘whole number rule’ which states that,the mass of the oxygen isotope being defined, all the other isotopes have masses that are very nearly whole numbers. -
Niels Bohr
In 1922 he received the Nobel Prize for his contributions to atomic structure and the quantum theory. He created the Bohr model of an atom which was clearly named after himself. He created the principle of complementarity which means that “Items could be separately anaylsed in terms of contradictory properties, like behaving as a wave or a stream of particles”-Wikipedia. -
Erwin Schrödinger
He created a number of results in the field of Quantum Theory. He created the wave equation. He also was an author of many books of differing genres such as science, ethics, religion, philosophy and theoretical biology. “He revealed the identity of his development of the formalism and matrix mechanics”-Wikipedia. -
Henry Moseley
Henry Moseley studied under Ernest Rutherford and developed the X-ray spectra to study atomic structure in 1913. Moseley’s discoveries helped to create a more accurate position of the elements on the periodic table. Because of Henry Moseley the periodic table is based on the atomic numbers of the elements. -
James Chadwick
In 1935 he was awarded with the Nobel Prize in physics. He discovered the Neutron in 1932. He wrote the final draft of the MAUD report. He measured the mass of the Neutron and hoped that his research of the Neutron would be the weapon which could help the fight against cancer. -
Murray Gell-man
In 1969 he received the Nobel Prize in physics for his work on the theory of elementary particles. He crated the V-A theory with Richard Feynman. In the 1960s he introduced algebra. He played a large role in keeping the string theory alive through the 1970s and 1980s.
