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  1. Periodic Table - Ptable - Properties

    Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.

  2. Periodic Table of Elements - PubChem

    Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …

  3. Periodic table - Wikipedia

    In the standard periodic table, the elements are listed in order of increasing atomic number. A new row (period) is started when a new electron shell has its first electron.

  4. Zperiod: Interactive Periodic Table (118 Elements, 3D Atom Models)

    Zperiod is a complete interactive periodic table with 118 elements, 3D atom models, ions, chemistry tools, and worksheet practice for modern chemistry learning.

  5. Periodic Table – Royal Society of Chemistry

    Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.

  6. PERIODIC Definition & Meaning - Merriam-Webster

    Jun 24, 2026 · The meaning of PERIODIC is occurring or recurring at regular intervals. How to use periodic in a sentence.

  7. Free Printable Periodic Tables (PDF and PNG)

    These periodic tables use accurate data for name, atomic number, element symbol, atomic weight, and electron configuration, obtained from the International Union of Pure and Applied Chemistry or …

  8. Periodic table | Definition, Elements, Names, Symbols, Groups, …

    Jun 20, 2026 · periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number —i.e., the total number of protons in the atomic nucleus.

  9. Periodic Table - PubChem

    May 8, 2019 · Table View is the traditional periodic table any scientist would instantly recognize. List View provides a summary view, allowing you to see all properties available for each element at once.

  10. Element List – Element Names, Symbols, and Atomic Numbers

    May 17, 2014 · Periodic Table Companion: Pair it with a printable periodic table for a complete atomic reference set. Whether you’re learning the periodic table or preparing classroom materials, this list …