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The INTERNET Database of Periodic Tables

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

Use the drop menus below to search & select from the more than 1100 Period Tables in the database:

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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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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