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  2. Mendeleev's predicted elements - Wikipedia

    en.wikipedia.org/wiki/Mendeleev's_predicted_elements

    To give provisional names to his predicted elements, Dmitri Mendeleev used the prefixes eka- / ˈ iː k ə-/, [note 1] dvi- or dwi-, and tri-, from the Sanskrit names of digits 1, 2, and 3, [3] depending upon whether the predicted element was one, two, or three places down from the known element of the same group in his table.

  3. Unbinilium - Wikipedia

    en.wikipedia.org/wiki/Unbinilium

    Unbinilium, also known as eka-radium or element 120, is a hypothetical chemical element; it has symbol Ubn and atomic number 120. Unbinilium and Ubn are the temporary systematic IUPAC name and symbol , which are used until the element is discovered, confirmed, and a permanent name is decided upon.

  4. Germanium - Wikipedia

    en.wikipedia.org/wiki/Germanium

    He initially considered the new element to be eka-antimony, but was soon convinced that it was instead eka-silicon. [ 14 ] [ 15 ] Before Winkler published his results on the new element, he decided that he would name his element neptunium , since the recent discovery of planet Neptune in 1846 had similarly been preceded by mathematical ...

  5. 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 17 November 2024. 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 ...

  6. Eka - Wikipedia

    en.wikipedia.org/wiki/Eka

    Eka Santika (born 1982), Indonesian footballer; Eka Tkeshelashvili (born 1977), Georgian jurist and politician; Eka Esu Williams (born 1950), Nigerian immunologist and activist; Eka Zguladze (born 1978), Georgian and Ukrainian government official; David W. Eka (born 1945), Mormon church leader in West Africa; Eka (actress), Bangladeshi actress

  7. Ununennium - Wikipedia

    en.wikipedia.org/wiki/Ununennium

    Ununennium, also known as eka-francium or element 119, is a hypothetical chemical element; it has symbol Uue and atomic number 119. Ununennium and Uue are the temporary systematic IUPAC name and symbol respectively, which are used until the element has been discovered, confirmed, and a permanent name is decided upon.

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  9. Naming of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Naming_of_chemical_elements

    Ruthenium is from the Latin name for the region including Belarus, Ukraine, and Russia. [29] Lutetium is named after Lutetia, the Latin name for Paris. Copper's name comes from an Old English word derived from the Latin name for the island of Cyprus. [30] The names of both magnesium and manganese derive from the Greek region of Magnesia. [31]