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Democritus Biography
Democritus was born in Abdera, Greece in 460 BC(not 1600, it wouldnt let me add 460 BC).He was born into a very rich family. He studied in the field of natural philosophy in Thrace, Athens and Abdera, Greece, and traveled to India, Egypt, and Babylon. He published over 70 books in his lifetime. He “came up” with the first known atomic theory. He was actually never married. -
Democritus Atomic Theory
His mentor Leucippus originally came up with the idea of the certain atomic theory but then it was adopted by Democritus in the year of 400 BC(not 1660.) That is where he got his idea of the atomic theory. It stated, The universe is composed of 2 elements: atoms and the void(black hole) in which they exist and move. They differ in size, shape, mass, position, and arrangement. -
John Dalton Biography
John Dalton was born on Sept 6, 1766. He was born into a Quaker family. His brother and him were both color blind. He lived in and worked in England. He actually began teaching at age 12! He worked as a teacher and public lecturer in England. During his early career he discovered the hereditary nature of red-green color blindness! He also came up with his own atomic theory. He came up with the law of thermal expansion. -
John Dalton's Atomic Theory
Once John Dalton got into atomism, he calculated atomic weights and came up with his atomic theory. His atomic theory stated that all atoms are solid, and look different from one another due to differing mass. Atoms are also indivisible and indestructible. You cannot destroy atoms. He came up with the idea of compounds. -
J.J Thomson Biograpghy
J.J. Thomson was born on December 18, 1856, in Cheetham Hill, England, He attended Trinity College In Cambridge at age of 14, he became the head of the Cavendish Laboratory,Thats where His research in cathode rays led to the discovery of the electron. Thomson won the Nobel Prize in 1906. He died on August 30, 1940. -
Ernest Rutherford Biography
Ernest Rutherford was born August 30, 1871. He was born in , and grew up in Spring Grove, New Zealand. Ernest was the first person ever to split the atom. Rutherford was awarded the Nobel Prize in 1908 because of his theory of the atom. Rutherford died in Cambridge, England, on October 19, 1937. The element 'rutherfordium' was named in his honor. -
Neils Bohr Biography
Niels Bohr born in 1885 in Copenhagen, Denmark. Niels parents were Christian Bohr and Ellen Adler Bohr. He had a younger brother who was born in 1887 named Harald Bohr. Niels Bohr got married to Margrethe Nørlund and they had six children together but only four got to grow up into adults. He died in 1962 due to heart failure. One child, Aage, grew up to be a well known physics scientist. -
Erwin Schrodinger
Erwin Schrodinger had many accomplishments throughout his life. He was homeschooled until age 11, and the then studied at a university and got his PhD at age 23. He worked as a professor at the University of Berlin. He won a nobel prize in physics for his atomic theory. He also wrote a book about the problems of genetics, and a crater on the dark side of the moon is named after him. -
J.J Thomson Atomic Theory
J.J. Thomson discovered the electron in 1897. His theory was that the atom was made up of small particles. He proved his theory by using the cathode ray tube. Scientists had already done many experiments trying to find the structure of the atom. The scientists passed an electric current through a vacuum tube and all they saw was light glowing inside the tube. He placed two electric plates on its path. He found out that the glowing light were smaller particles. The particles were smaller. -
Ernest Rutherford
Ernest Rutherford’s theory came by testing Thomson's hypothesis with his gold foil experiment. Rutherford thought that if Thomson's model was correct then the mass of the atom was spread throughout the atom,so if he shot high velocity alpha particles at an atom then there would be very little to deflect the alpha particles. He decided to test this with a thin film of gold atoms. As expected,most alpha particles went right through the gold foil but to his amazement a few alpha particles rebound. -
Neils Bohr
He worked out the atom’s structure and proposed the the idea that things could be complementarity, meaning things might have dual nature. If things are dual nature it means that they can have a particle and a wave. He made the first atomic bomb in 1945 during World War 2. He was part of the Manhattan Project during the time while he was developing the atomic bomb. The Manhattan project was the group of scientist making the atomic bomb. He did not develop the atomic bomb on his own. -
Erwin Schrodinger
His idea was called Wave Mechanics where he wanted to generate a mathematical model for the distribution of electrons in an atom. He wanted to use the model to find an electron in a certain position. His model states that the nucleus is surrounded by an electron cloud. The good thing about this model is that it consists of wave functions that relate to the behavior of electrons. The bad thing is that it is difficult to imagine a physical model of electrons as waves.
