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  • Why do the names of most chemical elements end with -um or -ium?
    The deliberate naming of chemical elements such that they end in -um or -ium originates in $1811$ More specifically, The Swedish chemist Berzelius, who recognised the value of logical naming, proposed (in $1811$) that the names of the elements should all be Latin in form Some elements had optained such a name prior to $1811$ Some were
  • nomenclature - Why is a temporary name given to an element with an . . .
    The roots are put together in the order of the digits which make up the atomic number and terminated by ‘ium’ to spell out the name The final ‘n’ of ‘enn’ is elided when it occurs before ‘nil’, and the final ‘i’ of ‘bi’ and of ‘tri’ when it occurs before ‘ium’
  • nomenclature - Are the names for chemical elements the same in both . . .
    The names of all new elements should have an ending that reflects and maintains historical and chemical consistency This would be in general “-ium” for elements belonging to groups 1–16, “-ine” for elements of group 17 and “-on” for elements of group 18 N B
  • Did Berzelius unify the names of chemical elements using the Latin . . .
    Additionally there are a large number of elements which are named after places (Swedish - ytterbium, yttrium, etc ; English - americium, californium, etc to name just a few) or people (mendelevium, einsteinium, fermium etc ) and have been given the Latinate endings -ium or occasionally -um (see this question for more
  • Why is 1H-pyrrol-1-ium non-aromatic? - Chemistry Stack Exchange
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  • nomenclature - Is it tennessINE because it has 117 electrons or because . . .
    The element's name ends with -ine instead of -ium probably because it is in group 17 all of whose elements are non-metals as names of most metals preferentially ends with a -ium It's not possible as of yet to determine its experimental properties given that only six atoms of Tennessine have been created This is why we can't establish its
  • What is a sigma complex? - Chemistry Stack Exchange
    The suffix "-ium" denotes a positively charged ion So, it is correct to call the resonance structures in the below picture depictions of a sigma complex? It's distinctly anionic rather than cationic
  • Hyphenation of chemical names - Chemistry Stack Exchange
    I'd like to mention an interesting solution to a line-break hyphen replacement, that appears in Nomenclature of Inorganic Chemistry – IUPAC Recommendations 2005 (‘Red Book 2005’), page 215:


















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