The INTERNET Database of Periodic Tables
There are hundreds 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.
Elements - noble gases and covalently bonded
gaseous molecules. The atoms and molecules are attracted by weak van
der Waals forces and so these elements remain gaseous at room temperature.
- Those elements which form ionic bonds generally have filled outer
electron shells. They typically bond to oxygen in silicates and oxides.
- The metals near iron in the periodic table that exhibit metallic bonding,
have a weak affinity for oxygen and sulfur and are readily soluble in
molten iron. Examples include iron, nickel, cobalt, platinum, gold,
tin, and tantalum. These elements are depleted in the earth crust because
they have partitioned into the earth's iron core.
- The elements that bond to S, Se, Te, Sb, and As. These bonds are predominantly
covalent in character.
As discussed in
more detail here.
Top of Page
|Periodic Table, What is it showing?
© Mark R. Leach 1999-
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
Suggestions or periodic table representations not shown on this page
Suggestions for links
Bug, typo or grammatical error reports about this page,
contact Mark R. Leach, the author, using email@example.com
This free, open
access web book is an ongoing project and your input is appreciated.
OnToplist is optimized by SEO
Add blog to our blog directory.
counter started in 2011