*atomic #117*
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*’tennessine’ is a ‘synthetic chemical element’ with symbol Ts*
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(it is the second-heaviest known element and the penultimate element of the 7th period of the ‘periodic table’)
(the discovery of ‘tennessine’ was officially announced in Dubna, Russia, by a Russian–American collaboration in April 2010, which makes it the most recently discovered element as of ‘2018’)
(one of its daughter isotopes was created directly in 2011, partially confirming the results of the experiment)
(the experiment itself was repeated successfully by the same collaboration in 2012 and by a joint German–American team in ‘may 2014’)
(in ‘december 2015’, the Joint Working Party of the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics, which evaluates claims of discovery of new elements, recognized the element and assigned the priority to the ‘russian–american team’)
(in ‘june 2016’, the IUPAC published a declaration stating that the discoverers had suggested the name tennessine after (‘tennessee’ / ‘united states’)
(in ‘november 2016’, they officially adopted the name “tennessine”)
(‘tennessine’ may be located in the “island of stability”, a concept that explains why some superheavy elements are more stable compared to an overall trend of decreasing stability for elements beyond bismuth on the ‘periodic table’)
(the synthesized tennessine atoms have lasted tens and hundreds of ‘milliseconds’)
(in the ‘periodic table’, tennessine is expected to be a member of group 17, all other members of which are ‘halogens’)
(some of its properties may significantly differ from those of the halogens due to ‘relativistic effects’)
(as a result, ‘tennessine’ is expected to be a volatile metal that neither forms anions nor achieves high ‘oxidation states’)
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(a few key properties, such as its melting and boiling points and its first ionization energy, are nevertheless expected to follow the periodic trends of the ‘halogens’)
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👈👈👈☜*“LIST OF ELEMENTS”* ☞ 👉👉👉
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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