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pre 1900 formulations
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2019 has been designated the International Year of the Periodic Table as it is the 150th Anniversary of the formulation of Mendeleev's Tabelle I

Internet Database of Periodic Tables


There are thousands of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.

Use the buttons below to select from the 1000+ Periodic Tables in the database:

 pre 1900 formulations  1900 to 1949 formulations  1950 to 1999 formulations  2000 to 2009 formulations    Spiral formulations  3 dimensional formulations
 Data mapping periodic tables  Miscellaneous periodic tables  Books and reviews  non-chemistry periodic tables      All periodic tables

Or, select:     Search by Year:      Text search:





1993

WebElements: The Periodic Table on The Web

Mark Winter's WebElements was started in 1993 when it was one of the first websites on the internet.

Mark Leach's Chemogenesis web book uses the WebElements periodic table as its master data source, and it does not attempt to duplicate it.

Abundance of elements (Earth's crust)
Abundance of elements (oceans)
Abundance of elements (sun)
Abundance of elements (Universe)
Abundance of elements (in human body)
Accurate mass of the isotopes
Atomic number
Atomic weight
Biological role
Block in periodic table
Boiling point
Bond enthalpy (diatomics)
Bond length in element
Colour (color)
Compounds
Covalent radius
Crystal structure
Density
Description
Discovery
Electrical resistivity

Electronegativities
Electronic configuration
Element bond length
Enthalpy of atomization
Enthalpy of fusion
Enthalpy of vaporization
Examples of compounds
Group name numbers
Health hazards
History of the element
Ionic radius
Ionization energy
Isolation
Isotope data
Key data
Meaning of name
Melting point
Molar volume
Names and symbols
Nuclear data
Origin of name

Oxidation states in compounds
Period in table
Properties of some compounds
Radioisotopes
Radius (atomic)
Radius (covalent)
Radius (ionic)
Radius (van der Waals)
Radius metallic (12)
Radioactive isotopes
Resistivity (electrical)
Shell structure
Standard atomic weights
Standard state
Structure of element
Thermal conductivity
Uses
Van der Waals radius
X-ray crystal structure

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables


Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


Queries, Suggestions, Bugs, Errors, Typos...

If you have any:

Queries
Comments
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please contact Mark R. Leach, the author, using mark@meta-synthesis.com

This free, open access web book is an ongoing project and your input is appreciated.