Paradoxes and Paradigms: elements and compounds: similar names, very different energetics

In this paper we continue to review the phonetic similarity of trivial names of chemical substances and the names of the elements in the periodic table. Thermochemical properties are explicitly considered. We review elements from francium (Fr) to oganesson (Og), Z = 87 to 118.

includes DNA and protein sequences and fragments.In contrast, there are calorimetrically derived thermochemical data for not many more than 10 4 , and certainly less than 10 5 , species.The extremely challenging demand for careful measurements on highly pure samples has resulted in very few contemporary laboratories whose goal and activity are to measure and understand these quantities.Relatedly and admittedly, one of the most important research activities of the authors has been the understanding, but never the measurement, of the quantities that arise from these studies.
In the present study in Structural Chemistry, we continue our efforts to find a compound with a subjective phonetic sound similarity for each element of the periodic table.In the first part [1,2] (of four planned parts), we discussed the elements from hydrogen (H) to argon (Ar) (Z = 1 to 18).In the second part [3], we discussed the elements from potassium (K) to xenon (Xe) (Z = 19 to 54).In the third part [4], we discussed cesium (Cs) to radon (Rn) (Z = 55 to 86).In the current part we discuss francium (Fr) to oganesson (Og) (Z = 87 to 118) (Table 1).Given our interest in thermochemistry, the question arises as to how we chose which compounds to consider.In most cases, primary sources were used as reference sources for thermochemical data; however, in some cases, secondary sources, i.e., the "Domalski compendium" [5], the "Wagman et al. compendium" [6], or the "Pedley compendium" [7] were used.It is to be acknowledged that the "missing" data are quite ancient and we admit surprise at its absence in these sources.We wish to encourage the remeasurement of these enthalpies of formation.Given there     Nihon is a Japanese word for Japan.meaning "Land of the rising sun".Hence, we have "rising" and hence ricinoleic acid.are many "exotic" compounds that have been recently synthesized and for which there are no measurements at all, we welcome the desired enthalpies of formation and any other thermochemical data about them.The reader may suspect that there are alternative choices of compounds with appropriate names, and some even with the desired calorimetric measurements.Many of these compounds, for instance, are of contemporary interest to the pharmaceutical and agricultural chemistry communities.However, even with the use of "generic" names,we abstain from the use of these species and associated trivial and unsystematic names because we are loathe to "advertise" one corporation over another.

FLEROVIUM, Fl
We acknowledge now our interest in etymology, but it is our view that giving the word origins for unsystematic and trivial names would be an excessive diversion of our activity.In addition, in many cases, we do not know the desired origin, nor do we know how to find it.We note a lengthy and thorough multipart recent study on the origin of the names of the elements [8][9][10], and while we laud this study, we do not wish to emulate it for the names of the compounds.
With the above discussion of our disclaimers as to the authors' thermochemical interests, choice of compounds, and etymological concerns, we now end the introduction to the fourth part of the paper.

Conclusions
Despite similarity of names, the differences in expected and actual composition of elements and compounds with similar phonetic of semi-systematic or trivial names are surprising.Still, semi-systematic or trivial names are due to their simplicity when compared to systematic names preferred by the chemical community.

Table 1
Elements from francium (Fr) to oganesson (Og) (Z = 87 to 118) arranged according to the increasing order of atomic number accompanied with examples of compounds with "similarly" sounding names but entirely