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Democritus
He was the apprentice to Leucippus who first thought of the theory, but later gave the knowledge to Democritus. Democritus then hypothesized that atoms can not differ in shape and temperature, be destoryed, are invsible, and are always in constant motion. -
Antoine Lavoisier
Antoine first proposed the Combustion Theory and was later behind the naming of oxygen. He also proposed the Law of Conversation of Mass which happened to be the first represnentation of modern chemistry. -
Joseph Louis Proust
He was a French scientist that helped prove that every pure chemical compound consists of elements in specific proportions. Now scientist have accepted his idea as the law of constant proportions. -
John Dalton
He created a theory that off of partial pressures on the idea that only like atoms in a mixture of gases repel one another, whereas unlike atoms react differently. This idea explained why each gas in a mixture behave individually. -
Michael Faraday
A British chemists and physicist who studied elctromagnetism and electrochemisty and was the man who discvered elctromagnetic induction which happened to be the principal behind the electic transformer and generator. -
Ernest Rutherford
He was responsible for several major achievements in the fields of radioactivity and nuclear physics which led him to discover the alpha and beta rays. Through many experiements he eventually discovered that the atom must contain a nucleus. -
Henri Becquerel
Born into the family of scientists Henri became a physicist who was known for his work on radioactivity. By accident he stumbled upon the evidence of natural raiodactivity when a reaction occured in one of his lab drawers. He was awared the peace prize in 1903 with Marie Curie. -
Joseph John Thomson
He discovered the electron through a series of experiments that studied the nature of electron-discharge. From his experiments he created the Plum Pudding Model which was propsed in 1904 before the discovered of the atomic nucleus. -
Robert A. Milikan
During his time Millikan made numerous discoveries, but his greatest success was the accurate determination of the charge carried by an electron. He also proved that the quanity was a constant for all electrons in 1910 which demonstrated the atomic structure of electricity. -
Lisa Meitner
The second women to ear a PhD in physics at the Univeristy of Vienna she went on to become a true pioneer of the nuclear subject. She helped discover radioactivity, nuclear fission, and well into the career of radioactivity. -
Otto Hahn
A German chemist who is widely know as the most influential nuclear chemists in history. He cleared paths for fields such as radioactivity, known as the "father of nuclear chemistry", and fought against the use of nuclear weapons after World War II. -
Albert Einstein
He treated the matter and energy as exchangables and later became famous for the theory of realitivity which helped laid the basis for the release of atomic engery. -
Niels Bohr
He was one of the foremost scientist to modern day physics that did an unstaintal amount for quantum theory, but also developed a model of the atom. His model showed a positively charaged nucleus that was surrounded by orbiting electrons. The element bohrium (Bh) was named after him as well. -
Erwin Schrodinger
A Nobel-peace prize winning Austria physicist who with the inspirationg of Louis de Broglie in 1925, Erwin was motivated to explain that an electron in an atom would move as a wave, contradicting with Brogile's theory. Later he devloped a paper that would create the Schrodinger wave equation. -
James Chadwick
He proved the existence of neutorons there by paving the way to the fussion of Uranium 235 and the creation of the atomic bomb. -
Louis DeBrogile
A french physicist whose work mainly concerned X-rays which helped him to study the wave particle durability. He later suggest that matter may work in the same way as natural light. This lead him to create the theory of electron waves. -
Marie & Pierre Curie
Pierre was a french chemisits who made several break throughs in radioactivity, crystallography, and magnetism. His wife Marie Curie was a chemistis and physcist who was awared her first of two Nobel Peace Prize for discovering radium and polonium along with subsequent research. -
Glenn T. Seaborg
Best known for discovering the element plutonium withe Edwin
McMillian in February 1941.He is also responsible for all futher transuranium elements through element 102 and his colleagues and him were also responsible for the identification of more than 100 isotopes of elements. -
Max Planck
In 1901 he created a theory that perfectly described the experimental evident, but one part was new that engery did not flow in a steady continuum, but was deliever in discrete packets which he later named quanta. -
Aristotle
Aristotle disagreeded with Democritus ideas about atoms and thought that all materials on Earth were created by the four elements of Earth, Fire, Water, and Air. He, along with many others believed that everything was created from some substance that was not invisible like atoms are.
