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How many chemical elements possible?

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How many chemical elements possible?

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There is a maximum to the number of unique elements that can exist since a nucleus contains Z positively charged particles (protons). Those repel each other by Coulomb forces but can remain together by a special nuclear force referred to as the strong nuclear force. At a certain large number of protons the strong nuclear force will begin to lose out to the Coulomb force — increasingly so with increasing numbers of protons — and the nucleus will no longer be stable. This is likely to happen between Z = 120 and Z = 130. By means of a novel mathematical analysis of the properties of the Periodic Table of Elements, Albert Khazan reported in Progress in Physics an upper limit on the atomic number and mass of a chemical element: The method of rectangular hyperbolas is developed for the first time, by which a means for estimating the upper bound of the Periodic Table is established in calculating that its last element has an atom mass of 411.663243 and an atomic number (the nuclear charge) of

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