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460
Democritus
Democritus had thought that atoms cannot be destroyed. They differ in size, shape and temperature, are always moving, and they are invisable. He believed that there are an infinite number of atoms. His theory was created in 465 BC. -
Antoine Lavoisier
Lavoisier is most noted for his discovery of the role oxygen plays in combustion. He recognized and named oxygen and hydrogen and opposed the phlogiston theory. Antoine helped construct the metric system and he wrote the first extensive list of elements. -
Joseph Louis Proust
Proust’s largest accomplishment iin science was disproving Berthollet with the law of definite proportions. Which is sometimes also known as Proust's Law. Proust studied copper carbonate, the two tin oxides, and the two iron sulfides to prove this law. -
John Dalton
His theory was that elements consisted of tiny particles called atoms. All the atoms that make up the element have the same mass. All elements are different from each other due to differing masses. A compound is made form elements bonding together. -
Michael Faraday
Michael found electro-magnetic induction, electro-magnetic rotations, the magneto-optical effect, diamagnetism. -
Henri Becquerel
He investigated whether there was any connection between X-rays and naturally occurring phosphorescence. Also the discoverer of radioactivity along with Marie Curie and Pierre Curie and all three won the 1903 Nobel Prize in Physics. -
J.J.Thompson
He discovered electrons and noticed that an atom can be divided. He had concluded that atoms are made of positive cores and negatively charged particles within it. He developed the Plum Pudding Model before the atomic nucleus was discovered.
This model shows that the electrons are surrounded by a "pudding" of positive charges to balance the negative charges. -
Max Planck
He was originator of the quantum theory. Max was a German theoretical physicist and won him the Nobel Prize in Physics in 1918. -
Marie and Pierre Curie
Marie Curie was a Polish-born French physicist famous for her work on radioactivity and twice a winner of the Nobel Prize. Pierre was one of the founding people of modern physics and is best known for being a pioneer in radioactive studies. Him and his wife won the Nobel Prize in Physics in 1903 and the curie a unit of radioactivity was named after him. -
Robert Millikan
He was the first to received a Ph.D from the physics department at Columbia University. He then had on gone on to win the Nobel Prize for physics and his work on the photoelectric effect and measuring the charge of the electron. Also he was able to obtain the exact value of Planck's constant. -
Ernest Rutherford
He the first person to split the atom, and was awarded the 1908 Nobel Prize in Chemistry for his theory of atomic structure. The only "solid" part of the atom is the atomic nucleus, which disproves the plum pudding model. -
Lise meitner
Worked on radioactivity and nuclear physics. Meitner was part of the team that discovered nuclear fission and achievement for which her colleague Otto Hahn was awarded the Nobel Prize. -
Otto Hahn
Discovered nuclear fission (the process of splitting atoms) with uranium. Without nuclear fission we could not have power plants.
Without power plants we could not have electricity in our houses. -
Albert Einstein
He discovered Special Theory of Relativity and development of the television, remote control devices, automatic door openers, lasers, and DVD-players. -
Niels Bohr
He came up with a revolutionary theory on atomic structures and radiation emission. He won the 1922 Nobel Prize in physics for his ideas. He was working out and presenting a picture of atomic structure with later improvements. -
Ernest Schrodinger
Erwin Schrödinger became a noted theoretical physicist and scholar who came up with a groundbreaking wave equation for electron movements. He was awarded the 1933 Nobel Prize in Physics. And then her had later become a director at Ireland's Institute for Advanced Studies. -
James Chadwick
He had proved the existence of neutrons and elementary particles devoid of any electrical charge. He was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. -
Louis DeBrogile
basis for developing the wave mechanics theory.
He believed that electrons can act like both particles and waves. Waves produced by electrons contained in the orbit around the nucleus, set up wave of certain energy, frequency, and wavelength. -
Glenn T Seaborg
Discovered ten transuranium elements and many isotopes that have applications in research, medicine, and industry. Him a share of the 1951 Nobel Prize in Chemistry. -
Aristotle
He thought that all materials on were not made of atoms but of the four elements, Earth, Fire, Water, and Air. Aristotle's view was finally proven incorrect and his teachings are not present in the modern view of the world.
