text: Throughout the recommendations the use of the electronegativity of elements for sequencing has been replaced by a formal list which is loosely based on electronegativity. The recommendations still use the terms electropositive and electronegative to refer to an element's relative position in this list.
  A simple rule of thumb ignoring lanthanides and actinides is:
  *for two elements in different groups—then the element in the higher numbered group has higher "electronegativity"
  *for two elements within the same group the element with the lower the atomic number has the higher "electronegativity"
  *Hydrogen is fitted in to be less electronegative than any chalcogen and more electronegative than any pnictogen. Hence the formulae of water and ammonia can be written HO and NH respectively.
  The full list, from highest to lowest "electronegativity" (with the addition of elements 112 through 118, that had not yet been named in 2005, to their respective groups):
  *Group 17 in atomic number sequence i.e.  F–Ts followed by
  *Group 16 in atomic number sequence i.e.  O–Lv followed by
  * H, hydrogen, followed by
  * Group 15 in atomic number sequence i.e.  N–Mc followed by
  * Group 14 in atomic number sequence i.e.  C–Fl followed by
  * Group 13 in atomic number sequence i.e.  B–Nh followed by
  * Group 12 in atomic number sequence i.e.  Zn–Cn followed by
  * Group 11 in atomic number sequence i.e.  Cu–Rg followed by
  * Group 10 in atomic number sequence i.e.  Ni–Ds followed by
  * Group 9 in atomic number sequence i.e.  Co–Mt followed by
  * Group 8 in atomic number sequence i.e.  Fe–Hs followed by
  * Group 7 in atomic number sequence i.e.  Mn–Bh followed by
  * Group 6 in atomic number sequence i.e.  Cr–Sg followed by
  * Group 5 in atomic number sequence i.e.  V–Db followed by
  * Group 4 in atomic number sequence i.e.  Ti–Rf followed by
  * Group 3 in atomic number sequence i.e.  Sc–Y followed by
  * the lanthanoids in atomic number sequence  i.e. La–Lu followed by
  * the actinoids in atomic number sequence i.e.  Ac–Lr followed by
  * Group 2 in atomic number sequence i.e.  Be–Ra followed by
  * Group 1 (excluding H) in atomic number sequence i.e.  Li–Fr followed by
  * Group 18 in atomic number sequence i.e.  He–Og