Systematic Element Name Article Index for
Systematic 		Website Links For
Systematic 		 

Information About

Systematic Element Name
  CATEGORIES ABOUT SYSTEMATIC ELEMENT NAME
   
chemical elements
   
chemical nomenclature
   
SHOPPER'S DELIGHT
 
Shop For:  
Department
Price Minimum:
Price Maximum:
      




THE IUPAC RULES

The temporary names are derived systematically from the element's Atomic Number . Each digit is translated to a 'numerical root', according to the table. The roots are Concatenated , and the name is completed with the ending ''-ium''. Some of the roots are Latin and others are Greek ; the reason is to avoid two digits starting with the same letter. There are two Sandhi rules are designed to prevent odd-looking names.
  • If ''bi'' or ''tri'' is followed by the ending ''ium'' (i.e. the last digit is 2 or 3), the result is '-bium' or -'trium', not '-biium' or '-triium'.

  • If ''enn'' is followed by ''nil'' (i.e. the sequence -90- occurs), the result is '-ennil-', not '-ennnil-'.


The systematic symbol is formed by taking the first letter of each root, converting the first to a capital.

All elements up to and including atomic number 111 have received permanent trivial names and symbols, so the use of systematic names and symbols is recommended only for elements 112 and above. Therefore in practice, systematic names are just those with 3-letter symbols.


EXAMPLES

Note: These examples show conjectured elements. As Of 2005 , Ununquadium , element 114, is the highest confirmed element known, with elements 115 ( Ununpentium ) and 116 ( Ununhexium ) awaiting confirmation.



TRIVIA


  • There is one element whose systematic name is very similar to its permanent trivial name (the symbols are identical). That is element 8: "octium" (O), more commonly known as Oxygen (O). If systematic names require three letters, this would be "Nno" (nilniloctium). However, leading zeroes are not written when writing eight (008), so one might also argue against writing leading nils.


  • There are 702 possible combinations of letters given single-letter and double-letter naming used in official element names, fewer than the 999 possible names using the triple-letter systematic element naming scheme.



EXTERNAL LINKS