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|
First Ionisation Energy of The Elements
Periodic trend for ionization energy, for example Mg → Mg+ + e–
Each period begins at a minimum for the alkali metals, and ends at a maximum for the noble gases. From Wikipedia:
Based on data from: Martin, W. C.; Wiese, W. L. (1996). Atomic, Molecular, & Optical Physics Handbook. American Institute of Physics. ISBN 156396242X.
|Periodic Table, What is it showing?||
© Mark R. Leach 1999-
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