enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. History of the periodic table - Wikipedia

    en.wikipedia.org/wiki/History_of_the_periodic_table

    This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and extended ...

  3. Mendeleev's predicted elements - Wikipedia

    en.wikipedia.org/wiki/Mendeleev's_predicted_elements

    Dmitri Mendeleev published a periodic table of the chemical elements in 1869 based on properties that appeared with some regularity as he laid out the elements from lightest to heaviest. [1] When Mendeleev proposed his periodic table, he noted gaps in the table and predicted that then-unknown elements existed with properties appropriate to fill ...

  4. Dmitri Mendeleev - Wikipedia

    en.wikipedia.org/wiki/Dmitri_Mendeleev

    Dmitri Ivanovich Mendeleev (/ ˌ m ɛ n d əl ˈ eɪ ə f / MEN-dəl-AY-əf; [2] [b] [a] 8 February [O.S. 27 January] 1834 – 2 February [O.S. 20 January] 1907) was a Russian chemist known for formulating the periodic law and creating a version of the periodic table of elements.

  5. Edward G. Mazurs - Wikipedia

    en.wikipedia.org/wiki/Edward_G._Mazurs

    Sample illustration: Periodic table in the style of a space lemniscate by William Crookes. In a self-published book, Types of Graphic Representation of the Periodic System of the Elements (1957) he listed some 700 images published since 1862, classified under 146 heads. [7]

  6. Discovery of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_chemical_elements

    Mendeleev arranges the 63 elements known at that time (omitting terbium, as chemists were unsure of its existence, and helium, as it was not found on Earth) into the first modern periodic table and correctly predicts several others. 31 Gallium: 1875 P. E. L. de Boisbaudran: 1878 P. E. L. de Boisbaudran and E. Jungfleisch

  7. Lothar Meyer - Wikipedia

    en.wikipedia.org/wiki/Lothar_Meyer

    Lothar Meyer's periodic table, published in "Die modernen Theorien der Chemie" (1864) [4] His book, Die modernen Theorien der Chemie , which he began writing in Breslau in 1862 and published two years later, contained an early version of the periodic table.

  8. History of chemistry - Wikipedia

    en.wikipedia.org/wiki/History_of_chemistry

    Mendeleev's law allowed him to build up a systematic periodic table of all the 66 elements then known based on atomic mass, which he published in Principles of Chemistry in 1869. His first Periodic Table was compiled on the basis of arranging the elements in ascending order of atomic weight and grouping them by similarity of properties.

  9. Types of periodic tables - Wikipedia

    en.wikipedia.org/wiki/Types_of_periodic_tables

    Theodor Benfey's arrangement is an example of a continuous (spiral) table. First published in 1964, it explicitly showed the location of lanthanides and actinides.The elements form a two-dimensional spiral, starting from hydrogen, and folding their way around two peninsulas, the transition metals, and lanthanides and actinides.