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John Dalton
John Dalton is considered the father of the atomic theory we use today. He beleived that atoms were tiny and indestructable particles with no internal structure. He also belived that all atoms were identicle in mass. -
JJ Thomson
J.J. Thomson was a British scientist famous for his "plum-pudding" model of the atomic structure. His idea of the atom were electrons settled in a sphere of positive charge. -
Marie Curie
Marie Curie is most famous for her discovery of the radioactive behavior of polonium and radium. She was the first person to win two Nobel Prizes but sadly died due to exposure to the radioactive elements. -
Robert Millikan
Robert Millikan conducted the well known "oil-drop" experiment to determine the size of the charge on the electron. Millikan had competition with J.J. Thomson over atomic theories. -
Ernest Rutherford
Ernest Rutherford was an extensive contributer to the chemist community. He is most known for his atomic model and "Gold-Foil" experiment. His version of the model displays a small, dense, positivley charged nucleus and electrons moving freely around the nucleus. His "Gold-Foil" experiment in which he shot electrons into a gold foil and they bounced back! -
Neils Bohr
Neils Bohr had a new idea of the atomic strcture similar to how the planets orbit the sun. He created the idea that electrons moved in specific energy feilds in a circular orbit at fixed distances. He also thought that spectrum lines were created when the electrons were in motion. -
Louise deBrogile
Louise deBrogile was a French physicist proposed the idea that electrons have properties similar to waves, these waves were eventually named after him once his ideas were proven with evidence. -
Werner Heisenberg
Due to the popularization of his last name in a television show, you may think Heisenberg is just a fictioal character. However he was a very impotant chemist who created the quantum mechanical model, or "cloud model". This model included a posotive nucleus surrounded by an electron charged cloud. -
Erwim Schrodinger
Erwin Schrodinger determined created a system to determin the probability of electrons in an atom. He also developed a mathematical equation to demonstrate the motion of electrons in atoms. -
James Chadwick
James Chadwick is responsible for the discovery of the neutron and helped develop the nuclear model. He also confirmed that the atomic nucleus contains neutrons and protons.
