The periodic table – an experimenter’s guide to transactinide chemistry

First Transactinide Chemistry Behind TASCA

The final phase of the TASCA commissioning program [1] included a series of experiments with Rf, Rf and Rf produced in the Pu(Ne,xn) reaction. One of the highlights was a proof-of-principle transactinide chemistry experiment with 78-s Rf. The Automated Rapid Chemistry Apparatus (ARCA) [2] was used to study the formation of fluoride complexes of Rf in diluted HF-solution by anion-exchange chroma...

Production and Chemistry of Transactinide Elements

The physics behind chemistry and the periodic table.

From the Mendeleev periodic table to particle physics and back to the periodic table

We briefly describe in this paper the passage from Mendeleev’s chemistry (1869) to atomic physics (in the 1900’s), nuclear physics (in the 1932’s) and particle physics (from 1953 to 2006). We show how the consideration of symmetries, largely used in physics since the end of the 1920’s, gave rise to a new format of the periodic table in the 1970’s. More specifically, this paper is concerned with...

The Periodic Electronegativity Table

The origins and development of the electronegativity concept as an empirical construct are briefly examined, emphasizing the confusion that exists over the appropriate units in which to express this quantity. It is shown how to relate the most reliable of the empirical scales to the theoretical definition of electronegativity in terms of the quantum potential and ionization radius of the atomic...