chemistry 5


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  • "he is the first scientist to arrange the chemical elements in order of their atomic wights. In 1862 de Choncourtuis presented a paper describing his arrangement of the elements to the French Academy of Science."
  • wait? I know that. Isn't it the paper that Alenxadre-Emile presented was published in the Academy's journal, Cumptes Pendus, but without the actual table.
  • Yes, according to my research
  • But! The Periodic Table did appear in another publication, but it was not as widely read as the Academy's journal. De Chancourtios was a geologist and his paper primarily dealt with geological concepts so his P.lT did not gain the attention of the chemists of the day.
  • Oh? Okay! Goodnyt. See you tomorrow.
  • Ms. Chan may I ask something?
  • Sure, what is it?
  • The modern P.T orders the elements according to increasing atomic number rather than increasing atomic weight, but the earlier table were true P.T since they grouped the elements according to periodicity of their chemical and physical properties.
  • Can you tell me about the modern P.T?
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