At    Name          MAI   MAI   Natural Density Atomic   Fermi Heat  GasDens   Gas
Nb                  Mass  Weight  Weight (g/cm3) Density  Vel.  Subl (g/cm3) Density
1   H Hydrogen        1   1.008   1.008   .0715 4.271E22 1.031  .00  8.990E-5 5.374E19
2  He Helium          4   4.003   4.003   .1259 1.894E22  .160  .00  1.787E-4 2.690E19
3  Li Lithium         7   7.016   6.941   .5340 4.633E22  .598 1.67   .5340   4.633E22
4  Be Beryllium       9   9.012   9.012  1.8480 1.235E23 1.078 3.38  1.8480   1.235E23
5   B Boron          11  11.009  10.811  2.3502 1.309E23 1.049 5.73  2.3502   1.309E23
6   C Carbon         12  12.000  12.011  2.2530 1.130E23 1.000 7.41  2.2530   1.130E23
7   N Nitrogen       14  14.003  14.007  1.0260 4.411E22 1.058  .00  1.251E-3 5.381E19
8   O Oxygen         16  15.995  15.999  1.4260 5.368E22  .939  .00  1.429E-3 5.381E19
9   F Fluorine       19  18.998  18.998  1.1111 3.522E22  .746  .00  1.1111   3.522E22
10 Ne Neon           20  19.992  20.180  1.2040 3.593E22  .342  .00  9.010E-4 2.690E19
11 Na Sodium         23  22.990  22.990   .9700 2.541E22  .453 1.12   .9700   2.541E22
12 Mg Magnesium      24  23.985  24.305  1.7366 4.303E22  .711 1.54  1.7366   4.303E22
13 Al Aluminum       27  26.982  26.982  2.7020 6.031E22  .905 3.36  2.7020   6.031E22
14 Si Silicon        28  27.977  28.086  2.3212 4.977E22  .974 4.70  2.3212   4.977E22
15  P Phosphorus     31  30.974  30.974  1.8219 3.542E22  .972 3.27  1.8219   3.542E22
16  S Sulfur         32  31.972  32.066  2.0686 3.885E22  .899 2.88  2.0686   3.885E22
17 Cl Chlorine       35  34.969  35.453  1.8956 3.220E22  .708  .00  1.8956   3.220E22
18 Ar Argon          40  39.962  39.948  1.6504 2.488E22  .398  .00  1.784E-3 2.691E19
19  K Potassium      39  38.964  39.098   .8632 1.330E22  .366  .93   .8632   1.330E22
20 Ca Calcium        40  39.963  40.080  1.5400 2.314E22  .627 1.83  1.5400   2.314E22
21 Sc Scandium       45  44.956  44.956  2.9890 4.004E22  .817 3.49  2.9890   4.004E22
22 Ti Titanium       48  47.950  47.900  4.5189 5.681E22  .994 4.89  4.5189   5.681E22
23  V Vanadium       51  50.940  50.942  5.9600 7.046E22 1.142 5.33  5.9600   7.046E22
24 Cr Chromium       52  51.940  51.996  7.2000 8.339E22 1.238 4.12  7.2000   8.339E22
25 Mn Manganese      55  54.940  54.938  7.4341 8.149E22 1.122 2.98  7.4341   8.149E22
26 Fe Iron           56  55.935  55.847  7.8658 8.482E22  .927 4.34  7.8658   8.482E22
27 Co Cobalt         59  58.930  58.933  8.9000 9.095E22 1.005 4.43  8.9000   9.095E22
28 Ni Nickel         58  57.940  58.690  8.8955 9.128E22 1.200 4.46  8.8955   9.128E22
29 Cu Copper         63  62.930  63.546  8.9200 8.453E22 1.066 3.52  8.9200   8.453E22
30 Zn Zinc           64  63.930  65.390  7.1400 6.576E22  .974 1.35  7.1400   6.576E22
31 Ga Gallium        69  68.930  69.720  5.9040 5.100E22  .849 2.82  5.9040   5.100E22
32 Ge Germanium      74  73.920  72.610  5.3500 4.437E22  .950 3.88  5.3500   4.437E22
33 As Arsenic        75  74.920  74.922  5.7270 4.603E22 1.090 1.26  5.7270   4.603E22
34 Se Selenium       80  79.920  78.960  4.8100 3.668E22 1.043 2.14  4.8100   3.668E22
35 Br Bromine        79  78.920  79.904  3.1990 2.411E22  .497  .00  3.1990   2.411E22
36 Kr Krypton        84  83.912  83.800  2.6021 1.870E22  .378  .00  3.740E-3 2.689E19
37 Rb Rubidium       85  84.910  85.470  1.5320 1.079E22  .352  .86  1.5320   1.079E22
38 Sr Strontium      88  87.910  87.620  2.6000 1.787E22  .578 1.70  2.6000   1.787E22
39  Y Yttrium        89  88.906  88.905  4.4690 3.027E22  .778 4.24  4.4690   3.027E22
40 Zr Zirconium      90  89.900  91.220  6.4900 4.285E22 1.021 6.33  6.4900   4.285E22
41 Nb Niobium        93  92.910  92.906  8.5700 5.555E22 1.029 7.59  8.5700   5.555E22
42 Mo Molybdenum     98  97.905  95.940 10.2060 6.406E22 1.254 6.83 10.2060   6.406E22
43 Tc Technetium     97  97.000  97.000 11.5000 7.140E22 1.000  .00 11.5000   7.140E22
44 Ru Ruthenium     102 101.904 101.070 12.3000 7.329E22 1.124 6.69 12.3000   7.329E22
45 Rh Rhodium       103 102.905 102.910 12.3990 7.256E22 1.088 5.78 12.3990   7.256E22
46 Pd Palladium     106 105.903 106.400 12.0200 6.803E22 1.271 3.91 12.0200   6.803E22
47 Ag Silver        107 106.905 107.870 10.4730 5.847E22 1.254 2.97 10.4730   5.847E22
48 Cd Cadmium       114 113.903 112.400  8.6420 4.630E22  .901 1.16  8.6420   4.630E22
49 In Indium        115 114.904 114.820  7.3000 3.829E22  .741 2.49  7.3000   3.829E22
50 Sn Tin           120 119.902 118.710  7.2816 3.694E22  .861 3.12  7.2816   3.694E22
51 Sb Antimony      121 120.903 121.750  6.6840 3.306E22  .932 2.72  6.6840   3.306E22
52 Te Tellurium     130 129.906 127.600  6.2500 2.950E22 1.005 2.02  6.2500   2.950E22
53  I Iodine        127 126.904 126.900  4.9373 2.343E22  .554  .00  4.9373   2.343E22
54 Xe Xenon         132 131.904 131.300  3.0589 1.403E22  .433  .00  5.890E-3 2.703E19
55 Cs Cesium        133 132.905 132.910  1.8785 8.511E21  .326  .81  1.8785   8.511E21
56 Ba Barium        138 137.905 137.327  3.5100 1.539E22  .513 1.84  3.5100   1.539E22
57 La Lanthanum     139 138.906 138.910  6.1738 2.676E22  .695 4.42  6.1738   2.676E22
58 Ce Cerium        140 139.905 140.120  6.6724 2.868E22  .726 4.23  6.6724   2.868E22
59 Pr Praseodymium  141 140.907 140.910  6.7730 2.895E22  .712 3.71  6.7730   2.895E22
60 Nd Neodymium     142 141.907 144.240  7.0080 2.926E22  .674 3.28  7.0080   2.926E22
61 Pm Promethium    148 148.000 148.000  6.4750 2.635E22  .714  .00  6.4750   2.635E22
62 Sm Samarium      152 151.919 150.360  7.5200 3.012E22  .715 2.16  7.5200   3.012E22
63 Eu Europium      153 152.921 151.970  5.2440 2.078E22  .591 1.85  5.2440   2.078E22
64 Gd Gadolinium    158 157.924 157.250  7.9010 3.026E22  .703 3.57  7.9010   3.026E22
65 Tb Terbium       159 158.925 158.930  8.2300 3.118E22  .680 3.81  8.2300   3.118E22
66 Dy Dysprosium    164 163.929 162.500  8.5510 3.169E22  .682 2.89  8.5510   3.169E22
67 Ho Holmium       165 164.930 164.930  8.7950 3.211E22  .681 3.05  8.7950   3.211E22
68 Er Erbium        166 165.930 167.260  9.0660 3.264E22  .685 3.05  9.0660   3.264E22
69 Tm Thulium       169 168.934 168.930  9.3210 3.323E22  .687 2.52  9.3210   3.323E22
70 Yb Ytterbium     174 173.939 173.040  6.9600 2.422E22  .619 1.74  6.9600   2.422E22
71 Lu Lutetium      175 174.941 174.970  9.8410 3.387E22  .718 4.29  9.8410   3.387E22
72 Hf Hafnium       180 179.947 178.490 13.3100 4.491E22  .830 6.31 13.3100   4.491E22
73 Ta Tantalum      181 180.948 180.950 16.6010 5.525E22 1.122 8.10 16.6010   5.525E22
74  W Tungsten      184 183.951 183.850 19.3500 6.338E22 1.238 8.68 19.3500   6.338E22
75 Re Rhenium       187 186.956 186.200 20.5300 6.640E22 1.045 8.09 20.5300   6.640E22
76 Os Osmium        192 191.961 190.200 22.4800 7.118E22 1.073 8.13 22.4800   7.118E22
77 Ir Iridium       193 192.963 192.200 22.4210 7.025E22 1.095 6.90 22.4210   7.025E22
78 Pt Platinum      195 194.965 195.080 21.4500 6.622E22 1.238 5.86 21.4500   6.622E22
79 Au Gold          197 196.967 196.970 19.3110 5.904E22 1.288 3.80 19.3110   5.904E22
80 Hg Mercury       202 201.971 200.590 13.5462 4.067E22  .787  .64 13.5462   4.067E22
81 Tl Thallium      205 204.974 204.380 11.8500 3.492E22  .664 1.88 11.8500   3.492E22
82 Pb Lead          208 207.977 207.190 11.3437 3.297E22  .849 2.03 11.3437   3.297E22
83 Bi Bismuth       209 208.980 208.980  9.8000 2.824E22  .884 2.17  9.8000   2.824E22
84 Po Polonium      210 209.983 210.000  9.2511 2.653E22  .807 1.50  9.2511   2.653E22
85 At Astatine      210 210.000 210.000 10.0000 2.868E22  .434  .00 10.0000   2.868E22
86 Rn Radon         222 222.000 222.000  9.9100 2.688E22  .419  .00  9.9100   2.688E22
87 Fr Francium      223 223.000 223.000 10.0000 2.700E22  .436  .00 10.0000   2.700E22
88 Ra Radium        226 226.000 226.000  5.0222 1.338E22  .515  .00  5.0222   1.338E22
89 Ac Actinium      227 227.000 227.000 10.0000 2.653E22  .731  .00 10.0000   2.653E22
90 Th Thorium       232 232.038 232.000 11.6580 3.026E22  .811 5.93 11.6580   3.026E22
91 Pa Proactinium   231 231.036 231.000 15.3700 4.007E22 1.958  .00 15.3700   4.007E22
92  U Uranium       238 238.051 238.030 19.0430 4.818E22 1.026 5.42 19.0430   4.818E22
(c) 1999,2000 J.F. Ziegler