1 1 1                                                                                  Periodic Table of the Elements                                                                                                                                                             2 18 2
        H                                                                                                                                                                                                                                                                                He
        1.008                 2                                                                                             Atomic                             2      Number of                               13              14              15              16              17          4.003
        Hydrogen     2               2                                                                                      Number          79                 8      Electrons                                       2               2               2               2               2   Helium      2
        3            1  4            2                                                                                      Element                           18      In Shells                          5            3  6            4  7            5  8            6  9            7   10          8
                                                                                                                            Symbol          Au 32
        Li              Be                                                                                                                                    18                                         B               C               N               O               F               Ne
        6.941           9.012                                                                                               Atomic          196.967            1      Element                            10.811          12.011          14.007          15.999          18.998           20.180
        Lithium      2  Beryllium    2                                                                                      Mass            Gold                      Name                               Boron        2  Carbon       2  Nitrogen     2  Oxygen       2  Fluorine     2   Neon        2
        11           8  12           8                                                                                                                                                                   13           8  14           8  15           8  16           8  17           8   18          8
        Na 1 Mg 2                                                                                                                                                                                        Al           3  Si           4  P            5  S            6  Cl           7  Ar           8
        22.990          24.305                3                 4             5                6               7               8               9              10              11              12         26.982          28.086          30.974          32.066          35.453           39.948
        Sodium       2  Magnesium 2                  2               2               2               2               2               2                2               2               2               2  Aluminum 2 Silicon           2  Phosphorus2     Sulfur       2  Chlorine     2   Argon       2
        19           8  20           8  21           8   22          8   23          8   24          8   25          8   26          8   27           8  28           8  29           8  30           8  31           8  32           8  33           8  34           8  35           8   36          8
                     8               8               9              10              11              13              13               14              15              16              18              18              18              18              18              18              18              18
        K            1  Ca 2 Sc                      2   Ti          2   V           2   Cr          1   Mn 2 Fe                     2   Co 2 Ni                      2  Cu 1 Zn 2 Ga 3 Ge 4 As 5 Se                                                                  6  Br           7  Kr           8
        39.098          40.078          44.956           47.867          50.942          51.996          54.938          55.845          58.933          58.693          63.546          65.38           69.723          72.631          74.922          78.971          79.904           84.798
        Potassium 2     Calcium      2  Scandium     2   Titanium    2   Vanadium 2 Chromium 2 Manganese 2 Iron                      2   Cobalt       2  Nickel       2  Copper       2  Zinc         2  Gallium      2  Germanium2 Arsenic           2  Selenium     2  Bromine      2   Krypton     2
        37           8  38           8  39           8   40          8   41          8   42          8   43          8   44          8   45           8  46           8  47           8  48           8  49           8  50           8  51           8  52           8  53           8   54          8
                    18              18              18              18              18              18              18               18              18              18              18              18              18              18              18              18              18              18
        Rb 8 Sr                      8  Y            9   Zr         10   Nb 12 Mo 13 Tc                             14   Ru 15 Rh 16 Pd 18 Ag 18 Cd 18 In                                                            18  Sn 18 Sb 18 Te                              18  I           18  Xe 18
        84.468       1  87.62        2  88.906       2   91.224      2   92.906      1   95.95       1   98.907      1   101.07      1   102.906      1  106.42          107.868      1  112.414      2  114.818      3  118.711      4  121.760      5  127.6        6  126.904      7   131.294     8
        Rubidium        Strontium       Yttrium          Zirconium       Niobium         Molibdenum      Technetium      Ruthenium       Rhodium         Palladium       Silver          Cadmium         Indium          Tin             Antimony        Tellurium       Iodine           Xenon
        55           2  56           2  57-71            72          2   73          2   74          2   75          2   76          2   77           2  78           2  79           2  80           2  81           2  82           2  83           2  84           2  85           2   86          2
                     8               8                               8               8               8               8               8                8               8               8               8               8               8               8               8               8               8
                    18              18  Lanthanide                  18              18              18              18               18              18              18              18              18              18              18              18              18              18              18
        Cs 18 Ba 18                                      Hf 32 Ta                   32   W 32 Re 32 Os 32 Ir                                         32  Pt          32  Au 32 Hg 32 Tl                              32  Pb 32 Bi                    32  Po 32 At                    32  Rn 32
                     8               8  Series                      10              11              12              13               14              15              17              18              18              18              18              18              18              18              18
        132.905      1  137.328      2                   178.49      2   180.948     2   183.84      2   186.207     2   190.23      2   192.217      2  195.085      1  196.967      1  200.592      2  204.383      3  207.2        4  208.980      5  [208.982] 6     209.987      7   222.018     8
        Cesium       2  Barium       2                   Hafnium     2   Tantalum    2   Tungsten    2   Rhenium     2   Osmium      2   Iridium      2  Platinum     2  Gold         2  Mercury      2  Thallium     2  Lead         2  Bismuth      2  Polonium     2  Astatine     2   Radon       2
        87           8  88           8  89-103           104         8   105         8   106         8   107         8   108         8   109          8  110          8  111          8  112          8  113          8  114          8  115          8  116          8  117          8   118         8
                    18              18  Actinide                    18              18              18              18               18              18              18              18              18              18              18              18              18              18              18
        Fr          32  Ra 32                            Rf         32   Db 32 Sg                   32   Bh 32 Hs 32 Mt 32 Ds 32 Rg 32 Cn 32 Uut 32 Fl                                                                               32  Uup32 Lv                    32  Uus 32 Uuo32
                    18              18  Series                      32              32              32              32               32              32              32              32              32              32              32              32              32              32              32
        223.020      8  226.025      8                   [261]      10   [262]      11   [266]      12   [264]      13   [269]       14  [268]       15  [269]       16  [272]       17  [277]       18  unknown18 [289]             18  unknown18 [298]             18  unknown18 unknown 18
                     1               2                               2               2               2               2               2                2               2               2               2               3               4               5               6               7               8
        Francium        Radium                           Rutherfordium   Dubnium         Seaborgium      Bohrium         Hassium         Meitnerium      Darmstadtium    Roentgenium Copernicium         Ununtrium       Flerovium       Ununpentium Livermorium         Ununseptium Ununoctium
                                                    57           2  58           2  59           2   60          2   61          2   62           2  63           2  64           2  65           2  66           2  67           2  68           2  69           2  70           2  71           2
                                                                 8               8               8               8               8                8               8               8               8               8               8               8               8               8               8
                                                                18              18              18              18               18              18              18              18              18              18              18              18              18              18              18
                                                    La 18 Ce 20 Pr                              21   Nd 22 Pm 23 Sm 24 Eu 25 Gd 25 Tb 27 Dy 28 Ho 29 Er                                                                                          30  Tm 31 Yb 32 Lu 32
                                                                 9               8               8               8               8                8               8               9               8               8               8               8               8               8               9
                                                    138.905      2  140.116      2  140.908      2   144.243     2   144.913     2   150.36       2  151.964      2  157.25       2  158.925      2  162.500      2  164.930      2  167.259      2  168.934      2  173.055      2  174.967      2
                                                    Lanthanum       Cerium          Praseodymium     Neodymium       Promethium      Samarium        Europium        Gadolinium      Terbium         Dysprosium      Holmium         Erbium          Thulium         Ytterbium       Lutetium
                                                    89           2  90           2  91           2   92          2   93          2   94           2  95           2  96           2  97           2  98           2  99           2  100          2  101          2  102          2  103          2
                                                                 8               8               8               8               8                8               8               8               8               8               8               8               8               8               8
                                                                18              18              18              18               18              18              18              18              18              18              18              18              18              18              18
                                                    Ac 32 Th 32 Pa                              32   U 32 Np 32 Pu 32 Am 32 Cm 32 Bk 32 Cf                                                                       32  Es 32 Fm 32 Md 32 No 32 Lr                                                  32
                                                                18              18              20              21               23              24              25              25              27              28              29              30              31              32              32
                                                    227.028      9  232.038 10 231.036           9   238.029     9   237.048     8   244.064      8  243.061      8  247.070      9  247.070      8  251.080      8  [254]        8  257.095      8  258.1        8  259.101      8  [262]        9
                                                                 2               2               2               2               2                2               2               2               2               2               2               2               2               2               2
                                                    Actinium        Thorium         Protactinium     Uranium         Neptunium       Plutonium       Americium       Curium          Berkelium       Californium     Einsteinium     Fermium         Mendelevium Nobelium            Lawrencium
                                                                                                                                                                                                                                                                                 ©2015 Todd Helmenstine
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