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The 150th year of the Periodic Table

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  • The 150th year of the Periodic Table

    The United Nations educational, scientific and cultural organization announced:

    " 1869 is considered as the year of discovery of the Periodic System by Dmitri Mendeleev. 2019 will be the 150th anniversary of the Periodic Table of Chemical Elements and has therefore been proclaimed the "International Year of the Periodic Table of Chemical Elements (IYPT2019)" by the United Nations General Assembly and UNESCO. "

    Quote reference: IYPT2019
    "The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we make no a priori assumptions about the meaning of the word "understand"."

    Heisenberg
    .....................

    " It is the glory of God to conceal a matter, and it is the glory of a king to search out a matter. " ( Proverbs 25:2 )

  • #2
    Originally posted by inertia View Post
    The United Nations educational, scientific and cultural organization announced:

    " 1869 is considered as the year of discovery of the Periodic System by Dmitri Mendeleev. 2019 will be the 150th anniversary of the Periodic Table of Chemical Elements and has therefore been proclaimed the "International Year of the Periodic Table of Chemical Elements (IYPT2019)" by the United Nations General Assembly and UNESCO. "

    Quote reference: IYPT2019
    Time for a facelift or remodeling? Seems pretty outdated, one and a half centuries is a long time for the same layout.

    It is interesting in looking at its history, the ways it has been assembled to pictorially represent the attributes in a logical fashion, simplifying complex relationships to make them visually apparent.

    Comment


    • #3
      Originally posted by simplicio View Post

      Time for a facelift or remodeling? Seems pretty outdated, one and a half centuries is a long time for the same layout.

      It is interesting in looking at its history, the ways it has been assembled to pictorially represent the attributes in a logical fashion, simplifying complex relationships to make them visually apparent.
      I know that you were kidding about remodeling. After all quantum mechanics provides an accurate model that follows the table.

      However, in reply to your response, I found this about Berkelium ---> It does not follow the rules of quantum mechanics.
      "The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we make no a priori assumptions about the meaning of the word "understand"."

      Heisenberg
      .....................

      " It is the glory of God to conceal a matter, and it is the glory of a king to search out a matter. " ( Proverbs 25:2 )

      Comment


      • #4
        Originally posted by inertia View Post

        I know that you were kidding about remodeling. After all quantum mechanics provides an accurate model that follows the table.

        However, in reply to your response, I found this about Berkelium ---> It does not follow the rules of quantum mechanics.

        Yes, I was kidding, the model of the periodic table is robust enough to last 150 years, and contains information to get one through an introductory chemistry course. The various properties, similarities, and differences are represented visually. SO a quick glance at the table can refresh my memory about the properties of the inert elements or elements which behave in similar ways to carbon.

        What I find interesting, but don't have a background in chemistry (my depth of knowledge is represented by a few wiki pages) is the various alternatives to the Mendeleev table, circular arrangements, three and four dimensional representations. Each arrangement is derived (logical necessity?) from prioritizing different criteria.
        https://en.wikipedia.org/wiki/Periodic_table#Different_periodic_tables

        One thought which struck me is the natural tendency to number things, on the one hand it seems natural to place element 10 next to element 11. But the behavior of neon is dissimilar to sodium (one combines with nothing, the other combines with everything) Which shows the genius of the Mendeleev table. But I also have to ask myself if my understanding the discontinuity between the chemistry of Ne and Na based from the arrangement of the rows, or from a deeper understanding of chemistry?

        Perhaps the only alternative I roughly understood was the 32 row table. But its greatest impediment to being printed was its aspect ratio, it did not easily fit a page of the textbook! Maybe our grandchildren will learn chemistry from the 32 row table, because they will use a computer screen which is configured for Hollywood movies.

        Now if only the physicists could come up with a cool graphic representation for relativity or quantum mechanics. . . .

        Or philosophers make a nifty diagrams for Kant and Aquinas to make their thought more accessible.

        Comment


        • #5
          Originally posted by simplicio View Post

          Now if only the physicists could come up with a cool graphic representation for relativity or quantum mechanics. . . .

          .
          For the physics of the periodic table, this is a basic ( and corny ) introduction:


          Last edited by inertia; 01-12-19, 01:57 PM.
          "The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we make no a priori assumptions about the meaning of the word "understand"."

          Heisenberg
          .....................

          " It is the glory of God to conceal a matter, and it is the glory of a king to search out a matter. " ( Proverbs 25:2 )

          Comment


          • #6
            Originally posted by inertia View Post
            The United Nations educational, scientific and cultural organization announced:

            " 1869 is considered as the year of discovery of the Periodic System by Dmitri Mendeleev. 2019 will be the 150th anniversary of the Periodic Table of Chemical Elements and has therefore been proclaimed the "International Year of the Periodic Table of Chemical Elements (IYPT2019)" by the United Nations General Assembly and UNESCO. "

            Quote reference: IYPT2019
            There were many versions of the periodic table, more than a thousand.

            " Early in 1869 the Russian chemical physicist Dmitri Mendeleev was growing increasingly frustrated while preparing the second volume of his textbook Principles of Chemistry. Though his first volume had been 600 pages long, Mendeleev had managed to cover barely eight of the 60 or so known elements in it. Facing a publisher’s deadline for the sequel before a looming trip to Europe, he decided to sketch out a table, putting the elements in columns and rows, ordering them by atomic weight in a way that showed their chemical similarities. He dated the table 17 February in the Julian calendar then used in Russia (corresponding to 1 March in the Gregorian calendar used throughout Europe).

            Mendeleev was not completely satisfied with this table, and would go on to create about 60 more versions of the scheme. But his 17 February table became the basis for the one that now appears in the pages of every chemistry textbook and hangs in nearly every chemistry classroom around the world. "

            "The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we make no a priori assumptions about the meaning of the word "understand"."

            Heisenberg
            .....................

            " It is the glory of God to conceal a matter, and it is the glory of a king to search out a matter. " ( Proverbs 25:2 )

            Comment


            • #7
              Originally posted by inertia View Post
              The United Nations educational, scientific and cultural organization announced:

              " 1869 is considered as the year of discovery of the Periodic System by Dmitri Mendeleev. 2019 will be the 150th anniversary of the Periodic Table of Chemical Elements and has therefore been proclaimed the "International Year of the Periodic Table of Chemical Elements (IYPT2019)" by the United Nations General Assembly and UNESCO. "

              Quote reference: IYPT2019
              From Alchemy to Chemistry


              "The exact sciences also start from the assumption that in the end it will always be possible to understand nature, even in every new field of experience, but that we make no a priori assumptions about the meaning of the word "understand"."

              Heisenberg
              .....................

              " It is the glory of God to conceal a matter, and it is the glory of a king to search out a matter. " ( Proverbs 25:2 )

              Comment


              • #8
                Originally posted by inertia View Post

                However, in reply to your response, I found this about Berkelium ---> It does not follow the rules of quantum mechanics.
                Well, Berkelium follows the rules of relativistic quantum mechanics. Just like relativity is required to explain the color of gold.

                P.S. The original version of the Pauli Exclusion Principle said that Pauli at all costs had to be excluded from places where experiments were done.

                Regards, HRG.

                "The universe doesn't care what happens to its inhabitants, but its inhabitants do" (Tyrrho).

                Comment

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