1803 ⟶ John Dalton: Atomic Theory of Matter
John Dalton: Atomic theory of matter
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1869
⚛️ John Dalton: Atomic Theory of Matter
John Dalton: Atomic theory of matter⟶
ChemistryAtomic TheoryAtomsDaltonMatter19th Century
United Kingdom💨 John Dalton Proposes Dalton's Law of Partial Pressures
John Dalton proposes Dalton's law, which describes relationship between the components in a mixture of gases and the relative pressure each contributes to that of the overall mixture.⟶
ChemistryDalton's LawGasesPressureDalton19th Century
United Kingdom🧪 John Dalton: Atomic Theory in Chemistry
John Dalton: Atomic Theory in (chemistry).⟶
ChemistryAtomic TheoryDaltonAtomsMatter19th Century
United Kingdom⚛️ Dalton Publishes Atomic Theory
John Dalton publishes New System of Chemical Philosophy, which contains first modern scientific description of the atomic theory, and clear description of the law of multiple proportions.⟶
ChemistryAtomic TheoryAtomsLaw of Multiple ProportionsJohn Dalton19th Century ScienceChemical PhilosophyMatter
United Kingdom⚛️ Wöhler and Liebig Discover Isomers
Friedrich Wöhler and Justus von Liebig perform the first confirmed discovery and explanation of isomers, earlier named by Berzelius. Working with cyanic acid and fulminic acid, they correctly deduce that isomerism was caused by differing arrangements of atoms within a molecular structure.⟶
ChemistryIsomerismMolecular structureOrganic chemistry19th centuryAtomsScientific discovery
Germany🗓️ Mendeleev Publishes Periodic Table
Dmitri Mendeleev publishes the first modern periodic table, with the 66 known elements organized by atomic weights. The strength of his table was its ability to accurately predict the properties of as-yet unknown elements.⟶
ChemistryPeriodic TableMendeleevElements19th CenturyAtomic TheoryChemical PropertiesClassification
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