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  2. Periodic trends - Wikipedia

    en.wikipedia.org/wiki/Periodic_trends

    [10] [11] As one moves from left-to-right across a period in the modern periodic table, the ionization energy increases as the nuclear charge increases and the atomic size decreases. The decrease in the atomic size results in a more potent force of attraction between the electrons and the nucleus. However, suppose one moves down in a group.

  3. Peierls transition - Wikipedia

    en.wikipedia.org/wiki/Peierls_transition

    The earliest written record of the Peierls transition was presented at the 1954 École de physique des Houches.These lecture notes (shown below) contain Rudolf Peierls' handwritten equations and figures, and can be viewed [3] in the library of the Institut Laue–Langevin, in Grenoble, France.

  4. Period 3 element - Wikipedia

    en.wikipedia.org/wiki/Period_3_element

    A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the chemical elements.The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases: a new row is begun when chemical behavior begins to repeat, meaning that elements with similar behavior fall into ...

  5. Periodic function - Wikipedia

    en.wikipedia.org/wiki/Periodic_function

    Therefore, the LCD can be seen as a periodicity multiplier. For set representing all notes of Western major scale: [1 9 ⁄ 8 5 ⁄ 4 4 ⁄ 3 3 ⁄ 2 5 ⁄ 3 15 ⁄ 8] the LCD is 24 therefore T = 24 ⁄ f. For set representing all notes of a major triad: [1 5 ⁄ 4 3 ⁄ 2] the LCD is 4 therefore T = 4 ⁄ f.

  6. Quasicrystal - Wikipedia

    en.wikipedia.org/wiki/Quasicrystal

    [11] The work ultimately earned Shechtman the 2011 Nobel Prize in Chemistry [12] and inspired significant advancements in materials science and mathematics. On 25 October 2018, Luca Bindi and Paul Steinhardt were awarded the Aspen Institute 2018 Prize for collaboration and scientific research between Italy and the United States, after they ...

  7. 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 ...

  8. Note-taking - Wikipedia

    en.wikipedia.org/wiki/Note-taking

    Note-taking has been an important part of human history and scientific development. The Ancient Greeks developed hypomnema, personal records on important subjects.In the Renaissance and early modern period, students learned to take notes in schools, academies and universities, often producing beautiful volumes that served as reference works after they finished their studies.

  9. Sheet music - Wikipedia

    en.wikipedia.org/wiki/Sheet_music

    Hymn-style arrangement of "Adeste Fideles" in standard two-staff format (bass staff and treble staff) for mixed voices Tibetan musical score from the 19th century. Sheet music is a handwritten or printed form of musical notation that uses musical symbols to indicate the pitches, rhythms, or chords of a song or instrumental musical piece.