#ifndef e
  #error "SIunits/elements.dat unnecessarily included"
#endif  // e


// ----------------------------------------------------------------------
//
// elements.dat -- define standard information about the elements
//
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\\
//                                                                     \\
// NOTICE:                                                             \\
//   This file is part of "The SI Library of Unit-Based Computation."  \\
//   See "doc/README" for copyright, license, and other information.   \\
//                                                                     \\
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\\
//
// Notes:
//   The atomic weight of an element is the ratio of the mass of a mole
//   of the element to 1/12 of a mole of Carbon 12.  The Standard Atomic
//   Weights apply to the elements as they occur naturally on earth.
//   Elements which do not occur naturally or which occur with wide
//   isotopic variability do not have Standard Atomic Weights.  For these
//   elements, the atomic weight is based on the longest-lived isotope.
//
// History:
//   17-Aug-1998  WEB  Initial draft; data for each element consists of
//     its name, abbreviation, atomic number, and atomic weight
//   21-Oct-1998  WEB  Updated per 1998 Review of Particle Physics
//   27-Oct-1998  WEB  Prepared for alternate spellings
//
// ----------------------------------------------------------------------


// ======================================================================
// Important:
//   This file's data must be in order by atomic number.
//   DO NOT REARRANGE!
// ======================================================================


//   #, sym, element name   , at. weight
//
e(   1, H , hydrogen      ,   1.00794   )
e(   2, He, helium        ,   4.002602  )
e(   3, Li, lithium       ,   6.941     )
e(   4, Be, beryllium     ,   9.012182  )
e(   5, B , boron         ,  10.811     )
e(   6, C , carbon        ,  12.0107    )
e(   7, N , nitrogen      ,  14.00674   )
e(   8, O , oxygen        ,  15.9994    )
e(   9, F , fluorine      ,  18.9984032 )
//
e(  10, Ne, neon          ,  20.1797    )
e(  11, Na, sodium        ,  22.989770  )
e(  12, Mg, magnesium     ,  24.3050    )
e(  13, Al, aluminum      ,  26.981538  )
e(  14, Si, silicon       ,  28.0855    )
e(  15, P , phosphorus    ,  30.973761  )
e(  16, S , sulphur       ,  32.066     )
e(  17, Cl, chlorine      ,  35.4527    )
e(  18, Ar, argon         ,  39.948     )
e(  19, K , potassium     ,  39.0983    )
//
e(  20, Ca, calcium       ,  40.078     )
e(  21, Sc, scandium      ,  44.955910  )
e(  22, Ti, titanium      ,  47.867     )
e(  23, V , vanadium      ,  50.9415    )
e(  24, Cr, chromium      ,  51.9961    )
e(  25, Mn, mangenese     ,  54.938049  )
e(  26, Fe, iron          ,  55.845     )
e(  27, Co, cobalt        ,  58.933200  )
e(  28, Ni, nickel        ,  58.6934    )
e(  29, Cu, copper        ,  63.546     )
//
e(  30, Zn, zinc          ,  65.39      )
e(  31, Ga, gallium       ,  69.723     )
e(  32, Ge, germanium     ,  72.61      )
e(  33, As, arsenic       ,  74.92160   )
e(  34, Se, selenium      ,  78.96      )
e(  35, Br, bromine       ,  79.904     )
e(  36, Kr, krypton       ,  83.80      )
e(  37, Rb, rubidium      ,  85.4678    )
e(  38, Sr, strontium     ,  87.62      )
e(  39, Y , yttrium       ,  88.90585   )
//
e(  40, Zr, zirconium     ,  91.224     )
e(  41, Nb, niobium       ,  92.90638   )
e(  42, Mo, molybdedum    ,  95.94      )
e(  43, Tc, technetium    ,  97.907215  )
e(  44, Ru, ruthenium     , 101.07      )
e(  45, Rh, rhodium       , 102.90550   )
e(  46, Pd, palladium     , 106.42      )
e(  47, Ag, silver        , 107.8682    )
e(  48, Cd, cadmium       , 112.411     )
e(  49, In, indium        , 114.818     )
//
e(  50, Sn, tin           , 118.710     )
e(  51, Sb, antimony      , 121.760     )
e(  52, Te, tellurium     , 127.60      )
e(  53, I , iodine        , 126.90447   )
e(  54, Xe, xenon         , 131.29      )
e(  55, Cs, cesium        , 132.90545   )
e(  56, Ba, barium        , 137.327     )
e(  57, La, lanthanum     , 138.9055    )
e(  58, Ce, cerium        , 140.116     )
e(  59, Pr, praseodymium  , 140.90765   )
//
e(  60, Nd, neodymium     , 144.24      )
e(  61, Pm, promethium    , 144.912745  )
e(  62, Sm, samarium      , 150.36      )
e(  63, Eu, europium      , 151.964     )
e(  64, Gd, gadolinium    , 157.25      )
e(  65, Tb, terbium       , 158.92534   )
e(  66, Dy, dysprosium    , 162.50      )
e(  67, Ho, holmium       , 164.93032   )
e(  68, Er, erbium        , 167.26      )
e(  69, Tm, thulium       , 168.93421   )
//
e(  70, Yb, ytterbium     , 173.04      )
e(  71, Lu, lutetium      , 174.967     )
e(  72, Hf, hafnium       , 178.49      )
e(  73, Ta, tantalum      , 180.9479    )
e(  74, W , tungsten      , 183.84      )
e(  75, Re, rhenium       , 186.207     )
e(  76, Os, osmium        , 190.23      )
e(  77, Ir, iridium       , 192.217     )
e(  78, Pt, platinium     , 195.078     )
e(  79, Au, gold          , 196.96655   )
//
e(  80, Hg, mercury       , 200.59      )
e(  81, Tl, thallium      , 204.3833    )
e(  82, Pb, lead          , 207.2       )
e(  83, Bi, bismuth       , 208.98038   )
e(  84, Po, polonium      , 208.982415  )
e(  85, At, astatine      , 209.987131  )
e(  86, Rn, radon         , 222.017570  )
e(  87, Fr, francinium    , 223.019731  )
e(  88, Ra, radium        , 226.025402  )
e(  89, Ac, actinium      , 227.027747  )
//
e(  90, Th, thorium       , 232.0381    )
e(  91, Pa, protactinium  , 231.03588   )
e(  92, U , uranium       , 238.0289    )
e(  93, Np, neptunium     , 237.048166  )
e(  94, Pu, plutonium     , 244.064197  )
e(  95, Am, americium     , 243.061372  )
e(  96, Cm, curium        , 247.070346  )
e(  97, Bk, berkelium     , 247.070298  )
e(  98, Cf, californium   , 251.079579  )
e(  99, Es, einsteinium   , 252.08297   )
//
e( 100, Fm, fermium       , 257.095096  )
e( 101, Md, mendelevium   , 258.098427  )
e( 102, No, nobelium      , 259.1011    )
e( 103, Lr, lawrencium    , 262.1098    )
e( 104, Rf, rutherfordium , 261.1089    )
e( 105, Db, dubnium       , 262.1144    )
e( 106, Sg, seaborgium    , 263.1186    )
e( 107, Bh, bohrium       , 262.1231    )
e( 108, Hs, hassium       , 265.1306    )
e( 109, Mt, meitnerium    , 266.1378    )
//

// -----  Alternate spellings:
//
//a( aluminium, aluminum )
//a( sulfur   , sulphur  )


// ----------------------------------------------------------------------