History of Periodic Table

History of Periodic Table

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  • There must be more elements than t
  • Not only have I been seeing similarities in the elements' atomic structures, but others have too. I guess I'm the only one who decided to organize them...
  • There must be more elements! I shall leave some spots blank..
  • We are now advancing the periodic table and the public's knowledge!
  • In 1863, the known elements at the time were organized into 11 different groups based on atomic structure by John Newlands.
  • I am conducting something I like to call as the gold foil experiment... Let's see if it works!
  • Dmitri Mendeleev created the first periodic table in 1869, and he arranged the elements in increasing atomic mass.
  • I would like to express my feelings on how grateful I am for recieving the Nobel Peace Prize...
  • In 1894, the discovery of noble gases has been discovered by Sir. William Ramsay and Lord Rayleigh. These elements were joined into the table as group 0. However, the last known element to join this group, radon, was discovered by another scientist.
  • I discovered ununoctium!
  • I discovered ununseptium!
  • In 1914, protons were discovered by Ernest Rutherford. Henry Moseley provided the atomic number, which determines an elements' amount of protons and electrons.
  • In 1945, the group known as lanthanides and actinides was discovered by Glenn Seaborg. 
  • As years go by, more and more elements are discovered and placed into the periodic table. 
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