Periodic Table |
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| What is the Periodic Table Showing? | Periodicity |
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. The database holds information on periodic tables, the discovery of the elements, the elucidation of atomic weights and the discovery of atomic structure (and much, much more).
| Year: 2019 | PT id = 1023, Type = data review |
Nucleosynthesis of the Heavy Elements
A PBS video explaining how neutron star mergers lead to the formation of heavy elements, and how a merger only 80 million years before the formation of the solar system, 4.5 billions years ago, seeded the Earth wth the heavy elements of the periodic table:
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| What is the Periodic Table Showing? | Periodicity |
© Mark R. Leach Ph.D. 1999 –
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