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The alchemists layed down the foundation of the modern periodic table and discovered a substance that could turn normal metals into gold. Brittanca.com
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Introduced the atomic theory sutori.com
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Theorized that all material things are composed of atoms. Brittanica.com -
Supported the idea that all material is composed of fundamental particles from particles from which all other materials are constructed. Study.com
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He found out that oxygen was a key substance in combustion. www.brittanica.com
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He proposed that atoms composed all matter and created the billiard ball model. Course.lumenlearing.com -
Created the avogrodo number to calculate chemical reactions. brittanica.com -
Devised the periodic classification of the chemical elements. brittanica.com -
Discovered the Electron and created the plum pudding model. Sutori.com -
Discovered the strongly radioactive elements known as polonium and radium. brittanica.com
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Determined there were 2 types of radiation, those being alpha and beta, and created the solar system model. Sutori.com -
Mathematically proved the existence of atoms. Brittanica.com
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Successfully determined the magnitude of the electrons charge nobelprize.org -
Proposed a theory for the hydrogen atom based on the quantum theory. Nobelprize.org -
He created Mosely's law which is characterized considering x-rays that are produced by atoms. Sutori.com -
He used mathematical equations to describe the likelihood of finding an electron in a certain position. brittanica.com -
Created the uncertainty principle and theory of quantum mechanics. brittanica.com -
Used mathematical equations to describe the likelihood of finding an electron to a certain position and created the electron cloud model. Brittanica.com -
James Chadwich discovered the neutrons, a part of the atom. brittanica.com -
Discovered neutrons, a part of the atom. brittanica.com
