The INTERNET Database of Periodic Tables
|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|
Astronomer's Periodic Table
Highly amusing for chemists is the astronomer's periodic table because astronomers consider there to be three types of element:
Yup, cosmologists and other professional star gazers consider all elements, atomic number three and up, to be metals.
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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