Crehore's Periodic System
[Part of] Crehore's periodic system, with the electronic configurations of the atoms, from Crehore, Gyroscopic Theory, p 323 (1915).
Crehore adopted Rydberg's ordinal number, implying the existance of two elements between hydrogen and helium.
Note the absence of groups VI and VII and that beryllium is shown as "Gl", glacinium.
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© Mark R. Leach 1999-
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