# Additional Explanations to "Upper Limit in Mendeleev's Periodic Table - Element No. 155". A Story How the Problem was Resolved

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```					July, 2009                                            PROGRESS IN PHYSICS                                                       Volume 3

LETTERS TO PROGRESS IN PHYSICS

Additional Explanations to “Upper Limit in Mendeleev’s Periodic Table —
Element No. 155”. A Story How the Problem was Resolved
Albert Khazan
E-mail: albkhazan@gmail.com

This paper gives a survey for the methods how a possible upper limit in Mendeleev’s
Periodic Table can be found. It is show, only the method of hyperbolas leads to exact

True number of elements in Mendeleev’s Periodic Table is                new elements, of course, but it gives no answer to the ques-
the most important problem to the scientists working on the             tion about their total number in the Periodic Table.
theory of the Periodic Table. The theory is based in the core               In contrast to this approach, when I tackled this problem,
on our views about the properties of the electron shells and            I used neither calculation for the limits of stability of the elec-
sub-shells in atoms, which obviously change with increasing             tron shells in atoms, nor experiments on synthesis of new ele-
nuclear change (the nuclei themselves remains unchanged in              ments, but absolutely another theoretical approach which al-
chemical reactions). The electron shells change due to re-              lowed me for formulation of a new law in the Periodic Table
distribution of electrons among the interacting atoms. There-           and, as a result, the upper limit in it. Here I explain how. (I
fore, it is important that we know the limits of stability of           published all the results, in detail, in a series of papers [1–6],
the electron shells in the heavy elements (high numbers in the          then collected in a book [7]).
Periodic Table); the stability limits are the subjects of calcula-          First. Contents Y of every single element (say, of a K -th
tion in the modern quantum theory which takes into account              element in the Table) in a chemical compound of a molec-
the wave properties of electron and nucleons. To do it, the             ular mass X can be given by the equation of an equilateral
scientists employ a bulky mathematical technics, which gives            hyperbola Y = K=X , according to which Y (in parts of unit)
calculations for the 8th and 9th periods of the Table (a hun-           decreases with increasing X .
dred new elements are joined there).                                        Second. After as I created the hyperbolic curves for not
Already 40 years ago the physicists proved that no chem-
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Description: This paper gives a survey for the methods how a possible upper limit in Mendeleev's Periodic Table can be found. It is show, only the method of hyperbolas leads to exact answering this question. [PUBLICATION ABSTRACT]
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