| 1. | Periodic Table of the Elements | | | [Basic data, includes printable version] Information on each of the chemical elements and data on their properties. Some site information is only in Czech language. www.tabulka.cz |
| 2. | WebElements | | | [Very comprehensive, includes very detailed write ups, basic nuclide data, extensive graphics] Professional scientists and students at school will all find something useful. Includes thousands of images relating to periodicity and structure. www.webelements.com |
| 5. | Visual Elements | | | [Detailed data, write-ups, basic listing of nuclides] The Royal Society of Chemistry's (in the UK) contribution to chemistry on the web. www.chemsoc.org |
| 7. | Exploring the Table of Isotopes | | | [Nuclide data only, extensive listing of nuclides] Provides isotope data for almost all known nuclides. From Berkeley Laboratory. ie.lbl.gov |
| 9. | The Periodic Table Challenge | | | [No element data] An auto-scored blank periodic table. The user fills it in online and the score is returned automatically. www.ilpi.com |
| 10. | Printable Periodic Table | | | [Very basic data, requires Adobe Acrobat Reader] PDF of the Periodic Table arranged in different formats. Files only contain elements' symbols, names and atomic number. science.widener.edu |
| 11. | EnvironmentalChemistry.com: Periodic Table of Elements | | | [Very comprehensive data, write-ups, extensive listing of nuclides] Data on elements includes scores of properties, element names in a dozen languages and almost all known nuclides. Environmental chemistry articles round out site. EnvironmentalChemistry.com |
| 14. | Fast Periodic Table | | | [Basic data] Interactive periodic table. Including uses and discovery. www.schoolscience.co.uk |
| 15. | On-line The Periodic Table of Elements | | | [Basic data, requires JavaScript] Includes historical information about the elements in Italian, but the table itself is in English. www.themeter.net |
| 16. | David's Whizzy Periodic Table | | | Applet-based table with visualizations of the electron shell model, the nucleus, the visual emission spectrum, and energy levels of the electrons. Also has interesting facts about each element represented. www.colorado.edu |
| 17. | Printable Periodic Table | | | [Very basic data] Minimalist table that provides symbols, atomic numbers, and atomic weight with four significant figures. www.swansontec.com |
| 19. | Periodic Table of the Elements | | | [Very Comprehensive data] Interactive periodic table. Includes additional information on ionisation energies, abundance, isotopes and reduction potentials. www.ktf-split.hr |
| 21. | VRML Periodic Table | | | [Very basic date, requires VRML] Visual representations of the Bohr model of the atom in 3D. www.psinvention.com |
| 23. | Periodic Table of the Elements | | | [Basic data] Simple click on periodic table. Includes electrical conductivity and ionization energies. www.crunchmachine.com |
| 25. | The Pictorial Periodic Table | | | [Basic data, very basic writeups, some pictures] Includes a printable periodic table, a cross-referenced list of nuclides, alternate styles, history, references, and many links to periodic table resources on the web. chemlab.pc.maricopa.edu |
| 26. | Extended Periodic Table | | | [Very basic data] Predicted periodic table for undiscovered elements with atomic number greater than 118. Theoretical discussion and Orbital freeware available. www.apsidium.com |
| 28. | Table of Periodic Properties of the Elements | | | [Detailed data] Shows two alternate versions of the periodic table. Element data is found under group sections. Includes radii, conductivity, enthalpy changes and oxidation state. www.geocities.com |
| 31. | Periodic Table ADventure | | | [No data] Includes the history of the periodic table and information on the structure of atoms and the periodic table. web.buddyproject.org |
| 33. | Periodic Table of the Elements | | | [Basic data] Interactive element data. Geared towards refractory materials which are covered in great detail. www.rembar.com |
| 34. | Model Periodic Table - Model Science Software | | | [Basic data] Interactive periodic table by Model Science Software. Available in English and Spanish, web based, Windows and Mac versions. Includes customizable quiz features. modelscience.com |
| 40. | Lenntech Periodic table | | | Interactive periodic table. Containing physical data, chemical properties and health and environmental effects. Available in five languages. www.lenntech.com |
| 41. | Infoplease.com: Periodic Table | | | An interactive periodic table with information about each element including the symbol, boiling point, melting point, discoverer and origin. www.infoplease.com |
| 42. | Periodic Table of Elements | | | [Basic data] Chemistrydata.com offers very basic information about elements in a searchable format. Includes a printable periodic table. www.chemistrydata.com |
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