Periodic Table Timeline
 

Periodic Table Timeline

Periodic Table Timeline
The Chemistry and Elements Timeline
Famous people and dates of key discoveries and events
Dmitri Mendeleev and the Periodic Table
Properties and atomic weights
Atomic numbers of the elements and the 'Periodic Law'
History & Timelines Index
 
Timelines of Events
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The Periodic Table is an arrangement of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns

  440 BCDemocritus and Leucippus propose the idea of the atom, an indivisible particle that all matter is made of. 
     
  330 BCAristotle proposes the four element theory: earth, air, fire & water 
     
  360 BCPlato coins term ‘elements’ (stoicheia) 
     
  1605Sir Francis Bacon published "The Proficience and Advancement of Learning" which contained a description of what would later be known as the scientific method. 
     
  1661Robert Boyle published "The Sceptical Chymist" which was a treatise on the distinction between chemistry and alchemy. It also contained some of the earliest ideas of atoms, molecules, and chemical reaction marking the beginning of the history of modern chemistry 
     
  1754Joseph Black isolated carbon dioxide, which he called "fixed air". 
     
  1778Antoine Lavoisier wrote the first extensive list of elements containing 33 elements & distinguished between metals and non-metals 
     
  1766Henry Cavendish discovered hydrogen as a colorless, odourless gas that burns and can form an explosive mixture with air 
     
  1773–1774Carl Wilhelm Scheele and Joseph Priestly independently isolated oxygen 
     
  1803John Dalton proposed "Dalton's Law" describing the relationship between the components in a mixture of gases. 
     
  1828Jakob Berzelius developed a table of atomic weights & introduced letters to symbolize elements 
     
  1828Johann Dobereiner developed groups of 3 elements with similar properties 
     
  1864John Newlands arranged the known elements in order of atomic weights & observed similarities between some elements 
     
  1864Lothar Meyer develops an early version of the periodic table, with 28 elements organized by valence 
     
  1864Dmitri Mendeleev produced a table based on atomic weights but arranged 'periodically' with elements with similar properties under each other. His Periodic Table included the 66 known elements organized by atomic weights. 
     
  1894William Ramsay discovered the Noble Gases. 
     
  1898Marie and Pierre Curie isolated radium and polonium from pitchblende. 
     
  1900Ernest Rutherford discovered the source of radioactivity as decaying atoms 
     
  1913Henry Moseley determined the atomic number of each of the elements and modified the 'Periodic Law'. 
     
  1940Edwin McMillan and Philip H. Abelson identify neptunium, the lightest and first synthesized transuranium element, found in the products of uranium fission. 
     
  1940Glenn Seaborg synthesised transuranic elements (the elements after uranium in the periodic table) 
     
Periodic Table Timeline

Periodic Table Timeline
History Timelines of Events provide fast facts and information about famous events in history and chemistry, such as those detailed in the Periodic Table Timeline. This major chemistry event is arranged in the Periodic Table timeline by chronological, or date order, providing an actual sequence of this past event which was of significance to history. Many historical events, such as detailed in the Periodic Table timeline, occurred during times of change. Many of the famous events as detailed in the Periodic Table timeline describe famous and major incidents. The specific period in history detailed in the Periodic Table timeline led to great changes in the development of World Civilisation. The Periodic Table timeline provides fast information via timelines which highlight the key dates and major historical significance in a fast information format. Specific information can be seen at a glance with concise and accurate details of this historical event of significance in modern chemistry. The Periodic Table timeline provides details of many important events of significant occurrence and outcome in the history of chemistry.

Periodic Table Timeline

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  • History Timelines & Chronologies
 

Periodic Table Timeline for Students, Children & Kids

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