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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: 1934 | PT id = 435, Type = formulation |
Brazilian Version of The Hubbard Periodic Chart Of The Atoms
A Brazilian Version of the American classic Henry Hubbard Periodic Chart Of The Atoms from a lecture theater in Rio, rediscovered by Martyn Poliakoff of PeriodicVideos.com and The University of Nottingham. From the early 1930s:
- Ma – Masurium (43) Disputed claim to discovery of technetium.
- Cb – Columbium (41) Former name of niobium
- Ab – Alabamine (85) Discredited claim to discovery of astatine.
- Il – Illinium (61) Discredited also
- Sa – Samarium (62) Current symbol is Sm
- Sp – Spectrium (70) Suggested name for ytterbium
- Cb – Columbium (41) Former name of niobium (also called Pelopium)
The current Sargent Welch version of the Henry Hubbard Periodic Table:
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| What is the Periodic Table Showing? | Periodicity |
© Mark R. Leach Ph.D. 1999 –
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