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Antoine Lavoisier
Known as the "Father of Modern Chemistry". Used his experiment of Turning HgO into Hg+O to come up with the Law of Conservation. The law states that matter can't be made or destroyed. -
Joseph Louis Proust
Proust discoverd the compound of Glucose. He created the Law of Definite Proportions, which states that the proportion by masses of two given element would always remain the same. He created the law in 1794, but it was not accepted until 1812. -
Indivisible, solid sphere model
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John Dalton
First experiment was on meteorology, then he studied color blindness. Next he crested his atomic theory. Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass. -
Michael Faraday
Faraday studied the effect of electricity on solutions. He made the term "electrolysis" and defined it as the splitting of molecules with electricity. He also developed laws of electrolysis. -
Henri Becquerel
While studying the effect of x-rays on photographic film, Becquerel discovered chemicals that decompose and give off very pentrating rays. -
J.J. Thomson
Thomson discovered the electron and also created the Plum Pudding model of an atom. The Plum Pudding Model was devised after the discovery of the electron, but before the discovery of the atomic nucleus. -
Marie Curie
Curie theorized that radioactive particles cause atoms to break down, then releasing radiation that takes the form of energy and subatomic particles. -
Max Planck
Planck used the idea of quanta (discrete units of energy) to explain hot glowing matter. -
Plum Pudding Model
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Albert Einstein
Published the famous equation E=mc^2. It means that energy is equal to mass multiplied by the speed of light squared -
Planetary Model
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Ernest Rutherford
Known as the "Father of Nulear Physics". Discovered that atoms have a nucleus. He is also credited for the discovery of the proton, He was awarded the Nobel Prize in Chemistry in 1908 for his investigations into the disintegration of the elements, and the chemistry of radioactive substances. -
Robert Millikan
Millikan's most famous experiment was the Oil Drop Experiment. He also measured the charge of an electron. -
Quantum Mechanical Model
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Niels Bohr
Bohr made an explanation of atomic structure that underlies regularities of the periodic table of elements. His atomic model had atoms built up of sucessive orbital shells of electrons. -
Louis DeBroglie
DeBroglie discovered that electrons were similisr to particles and waves. Wave-particle duality. This is the fact that every elementary particles exhibits the properties of not only particles, but also waves. -
Ernest Schrodinger
Schrodinger is well known for the Schrodinger Equation which he received a Nobel Prize in Physics for in 1933.The Schrodinger Equation is "the wave equation of non relativistic quantum mechanics". He proved that waves can be used to describe electrons in atoms. He also built off of Bohr's model of the atom with the Electron Cloud Model. This model depicts the floating motion of the electrons, rather then them having a set path of travel. -
Electron Cloud Model
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James Chadwick
Chadwick discovered the neutron using alpha particles. -
Otto Hahn
Conducted experiments proving heavy elements capture neutrons and form unstable products which undergo fission. This process ejects more neutrons continuing the fission chain reaction. -
Glen T. Seaborg
Seaborg synthesized 6 transuranium elements. He also suggested a change in the layout of the periodic table. -
Lisa Meitner
Conducted experiments proving heavy elements capture neutrons and form unstable products which undergo fission. This process ejects more neutrons continuing the fission chain reaction.
