1) Update atomic weights.

The weights here are taken from
     http://www.iupac.org/publications/pac/2003/7508/7508x1107.html
   and have been rounded to four significant figures in all cases.
   In the case of elements that have no isotopes stable enough for
   reasonable measurement, numbers have been updated from Zumdahl,
   "Chemistry", Fifth edition and are presented (as before) in parentheses.
2) Cesium is now C{a}esium
3) A number of new elements have been added at the end of the periodic
   table.

games/quiz/datfiles/elements

@@ -1,103 +1,114 @@
 H:1:1.008:Hydrogen
 He:2:4.003:Helium
-Li:3:6.94:Lithium
-Be:4:9.013:Beryllium
-B:5:10.82:Boron
-C:6:12.011:Carbon
-N:7:14.008:Nitrogen
-O:8:16.0:Oxygen
-F:9:19.0:Fluorine
-Ne:10:20.183:Neon
-Na:11:22.991:Sodium
-Mg:12:24.32:Magnesium
+Li:3:6.941:Lithium
+Be:4:9.012:Beryllium
+B:5:10.81:Boron
+C:6:12.01:Carbon
+N:7:14.01:Nitrogen
+O:8:16.00:Oxygen
+F:9:19.00:Fluorine
+Ne:10:20.18:Neon
+Na:11:22.99:Sodium
+Mg:12:24.30:Magnesium
 Al:13:26.98:Alumin{i}um
 Si:14:28.09:Silicon
-P:15:30.975:Phosphorus
-S:16:32.066:Sulfur
-Cl:17:35.457:Chlorine
-Ar:18:39.944:Argon
-K:19:39.1:Potassium
+P:15:30.97:Phosphorus
+S:16:32.06:Sulfur
+Cl:17:35.45:Chlorine
+Ar:18:39.95:Argon
+K:19:39.10:Potassium
 Ca:20:40.08:Calcium
 Sc:21:44.96:Scandium
-Ti:22:47.9:Titanium
-V:23:50.95:Vanadium
-Cr:24:52.01:Chromium
+Ti:22:47.87:Titanium
+V:23:50.94:Vanadium
+Cr:24:52.00:Chromium
 Mn:25:54.94:Manganese
-Fe:26:55.85:Iron
-Co:27:58.94:Cobalt
-Ni:28:58.71:Nickel
-Cu:29:63.54:Copper
-Zn:30:65.38:Zinc
+Fe:26:55.84:Iron
+Co:27:58.93:Cobalt
+Ni:28:58.69:Nickel
+Cu:29:63.55:Copper
+Zn:30:65.41:Zinc
 Ga:31:69.72:Gallium
-Ge:32:72.6:Germanium
-As:33:74.91:Arsenic
+Ge:32:72.64:Germanium
+As:33:74.92:Arsenic
 Se:34:78.96:Selenium
-Br:35:79.916:Bromine
-Kr:36:83.8:Krypton
-Rb:37:85.48:Rubidium
-Sr:38:87.63:Strontium
-Y:39:88.92:Yttrium
+Br:35:79.90:Bromine
+Kr:36:83.80:Krypton
+Rb:37:85.47:Rubidium
+Sr:38:87.62:Strontium
+Y:39:88.91:Yttrium
 Zr:40:91.22:Zirconium
 Nb:41:92.91:Niobium
-Mo:42:95.95:Molybdenum
-Tc:43:(99):Technetium
+Mo:42:95.94:Molybdenum
+Tc:43:(98):Technetium
 Ru:44:101.1:Ruthenium
-Rh:45:102.91:Rhodium
+Rh:45:102.9:Rhodium
 Pd:46:106.4:Palladium
-Ag:47:107.88:Silver
-Cd:48:112.41:Cadmium
-In:49:114.82:Indium
+Ag:47:107.9:Silver
+Cd:48:112.4:Cadmium
+In:49:114.8:Indium
 Sn:50:118.7:Tin
-Sb:51:121.76:Antimony
-Te:52:127.61:Tellurium
-I:53:126.91:Iodine
+Sb:51:121.8:Antimony
+Te:52:127.6:Tellurium
+I:53:126.9:Iodine
 Xe:54:131.3:Xenon
-Cs:55:132.91:Cesium
-Ba:56:137.36:Barium
-La:57:138.92:Lanthanum
-Ce:58:140.13:Cerium
-Pr:59:140.92:Praseodymium
-Nd:60:144.27:Neodymium
+Cs:55:132.9:Caesium
+Ba:56:137.3:Barium
+La:57:138.9:Lanthanum
+Ce:58:140.1:Cerium
+Pr:59:140.9:Praseodymium
+Nd:60:144.2:Neodymium
 Pm:61:(145):Promethium
-Sm:62:150.35:Samarium
+Sm:62:150.4:Samarium
 Eu:63:152.0:Europium
-Gd:64:157.26:Gadolinium
-Tb:65:158.93:Terbium
-Dy:66:162.51:Dysprosium
-Ho:67:164.94:Holmium
-Er:68:167.27:Erbium
-Tm:69:168.94:Thulium
-Yb:70:173.04:Ytterbium
-Lu:71:174.99:Lutetium
+Gd:64:157.2:Gadolinium
+Tb:65:158.9:Terbium
+Dy:66:162.5:Dysprosium
+Ho:67:164.9:Holmium
+Er:68:167.3:Erbium
+Tm:69:168.9:Thulium
+Yb:70:173.0:Ytterbium
+Lu:71:175.0:Lutetium
 Hf:72:178.5:Hafnium
-Ta:73:180.95:Tantalum
-W:74:183.86:Tungsten
-Re:75:186.22:Rhenium
+Ta:73:180.9:Tantalum
+W:74:183.8:Tungsten
+Re:75:186.2:Rhenium
 Os:76:190.2:Osmium
 Ir:77:192.2:Iridium
-Pt:78:195.09:Platinum
+Pt:78:195.1:Platinum
 Au:79:197.0:Gold
-Hg:80:200.61:Mercury
-Tl:81:204.39:Thallium
-Pb:82:207.21:Lead
+Hg:80:200.6:Mercury
+Tl:81:204.4:Thallium
+Pb:82:207.2:Lead
 Bi:83:209.0:Bismuth
-Po:84:(210):Polonium
+Po:84:(209):Polonium
 At:85:(210):Astatine
 Rn:86:(222):Radon
 Fr:87:(223):Francium
 Ra:88:(226):Radium
 Ac:89:(227):Actinium
-Th:90:232.05:Thorium
-Pa:91:(231):Protactinium
-U:92:238.07:Uranium
+Th:90:232.0:Thorium
+Pa:91:231.0:Protactinium
+U:92:238.0:Uranium
 Np:93:(237):Neptunium
-Pu:94:(242):Plutonium
+Pu:94:(244):Plutonium
 Am:95:(243):Americium
-Cm:96:(248):Curium
+Cm:96:(247):Curium
 Bk:97:(247):Berkelium
-Cf:98:(249):Californium
-Es:99:(254):Einsteinium
-Fm:100:(253):Fermium
-Md:101:(256):Mendelevium
-No:102:(253):Nobelium
-Lw:103:(259):Lawrencium
+Cf:98:(251):Californium
+Es:99:(252):Einsteinium
+Fm:100:(257):Fermium
+Md:101:(258):Mendelevium
+No:102:(259):Nobelium
+Lr:103:(260):Lawrencium
+Rf:104:(261):Rutherfordium
+Db:105:(262):Dubnium
+Sg:106:(263):Seaborgium
+Bh:107:(264):Bohrium
+Hs:108:(265):Hassium
+Mt:109:(268):Meitnerium
+Uun:110:(281):Ununnilium
+Uuu:111:(272):Unununium
+Uub:112:(285):Ununbium
+Uuq:114:(289):Ununquadium
+Uuh:116:(289):Ununhexium