Z Element A dens at_dens Debye_T struct a mp Photoelectric Compton *10^22 deg *10^-8 deg 200 keV 500 keV 200 keV 500 keV g/cm3 1/cm3 K cm C cm2/g cm2/g cm2/g cm2/g 3 Li 6.9 0.53 4.64 369.0 bcc 3.50 0.0 6 C 12.0 3.51 17.61 2219.0 dia 3.56 0.0 .0001 .0000 .120 .085 11 Na 23.0 0.97 2.54 158.0 bcc 4.28 0.0 13 Al 27.0 2.72 6.03 426.0 fcc 4.04 660.0 .0021 .0001 .122 .085 14 Si 28.1 2.42 5.19 636.0 dia 5.43 1410.0 .0027 .0002 .127 .088 19 K 39.1 0.86 1.33 89.0 bcc 5.33 0.0 20 Ca 40.1 1.55 2.33 229.0 fcc 5.56 0.0 23 V 51.0 5.96 7.05 300.0 bcc 3.03 0.0 24 Cr 52.0 7.20 8.34 585.0 bcc 2.88 0.0 25 Mn 54.9 7.20 7.90 450.0 cub 2.33 0.0 26 Fe 55.8 7.86 8.48 464.0 bcc 2.86 1535.0 28 Ni 58.7 8.90 9.13 440.0 fcc 3.52 1455.0 .0320 .0024 .125 .084 29 Cu 63.5 8.92 8.46 348.0 fcc 3.61 1064.0 .0360 .0027 .122 .081 32 Ge 72.6 5.35 4.44 363.0 dia 5.65 959.0 .0463 .0036 .121 .080 38 Sr 87.6 2.60 1.79 147.0 fcc 6.05 0.0 41 Nb 91.9 8.55 5.54 250.0 bcc 3.29 2477.0 .110 .0087 .126 .080 42 Mo 96.0 10.20 6.10 470.0 bcc 3.14 2622.0 .124 .0099 .125 .079 46 Pd 106.7 11.40 6.44 299.0 fcc 3.88 1549.0 47 Ag 107.9 10.50 5.86 225.0 fcc 4.08 960.0 .172 .0139 .126 .079 50 Sn 118.7 7.28 3.70 212.0 dia 6.46 0.0 55 Cs 132.9 1.87 0.85 40.0 bcc 6.05 0.0 73 Ta 181.0 16.60 5.53 245.0 bcc 3.30 3000.0 .602 .0550 .143 .078 74 W 183.9 19.30 6.32 405.0 bcc 3.16 3420.0 .637 .0570 .146 .080 77 Ir 192.2 22.41 7.03 420.0 fcc 3.60 0.0 78 Pt 195.1 21.45 6.62 221.0 fcc 3.92 1768.0 .706 .0685 .146 .078 79 Au 197.0 19.30 5.90 164.0 fcc 4.07 1054.0 .767 .0716 .146 .078 82 Pb 207.2 11.34 3.30 108.0 fcc 4.94 0.0