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Hydrogen H 1 Nonmetal Gas 1.0080u 1s1 +1; -1 2.2 120pm 13.598eV 0.754eV 13.81K 20.28K 0.00008988g/cm 1766 column16
Lithium Li 3 Alkali Metal Solid 7.0u [He]2s1 +1 0.98 182pm 5.392eV 0.618eV 453.65K 1615K 0.534g/cm 1817
Boron B 5 Metalloid Solid 10.81u [He]2s22p1 +3 2.04 192pm 8.298eV 0.277eV 2348K 4273K 2.37g/cm 1808
Carbon C 6 Nonmetal Solid 12.011u [He]2s22p2 +4; +2; -4 2.55 170pm 11.260eV 1.263eV 3823K 4098K 2.2670g/cm Ancient
Oxygen O 8 Nonmetal Gas 15.999u [He]2s22p4 -2 3.44 152pm 13.618eV 1.461eV 54.36K 90.2K 0.001429g/cm 1774
Fluorine F 9 Halogen Gas 18.99840316u [He]2s22p5 -1 3.98 135pm 17.423eV 3.339eV 53.53K 85.03K 0.001696g/cm 1670
Sodium Na 11 Alkali Metal Solid 22.9897693u [Ne]3s1 +1 0.93 227pm 5.139eV 0.548eV 370.95K 1156K 0.97g/cm 1807
Aluminum Al 13 Post-Transition Metal Solid 26.981538u [Ne]3s23p1 +3 1.61 184pm 5.986eV 0.441eV 933.437K 2792K 2.70g/cm Ancient
Silicon Si 14 Metalloid Solid 28.085u [Ne]3s23p2 +4; +2; -4 1.9 210pm 8.152eV 1.385eV 1687K 3538K 2.3296g/cm 1854
Phosphorus P 15 Nonmetal Solid 30.97376200u [Ne]3s23p3 +5; +3; -3 2.19 180pm 10.487eV 0.746eV 317.3K 553.65K 1.82g/cm 1669
Sulfur S 16 Nonmetal Solid 32.07u [Ne]3s23p4 +6; +4; -2 2.58 180pm 10.360eV 2.077eV 388.36K 717.75K 2.067g/cm Ancient
Chlorine Cl 17 Halogen Gas 35.45u [Ne]3s23p5 +7; +5; +1; -1 3.16 175pm 12.968eV 3.617eV 171.65K 239.11K 0.003214g/cm 1774
Potassium K 19 Alkali Metal Solid 39.0983u [Ar]4s1 +1 0.82 275pm 4.341eV 0.501eV 336.53K 1032K 0.89g/cm 1807
Scandium Sc 21 Transition Metal Solid 44.95591u [Ar]4s23d1 +3 1.36 211pm 6.561eV 0.188eV 1814K 3109K 2.99g/cm 1879
Titanium Ti 22 Transition Metal Solid 47.867u [Ar]4s23d2 +4; +3; +2 1.54 187pm 6.828eV 0.079eV 1941K 3560K 4.5g/cm 1791
Vanadium V 23 Transition Metal Solid 50.9415u [Ar]4s23d3 +5; +4; +3; +2 1.63 179pm 6.746eV 0.525eV 2183K 3680K 6.0g/cm 1801
Chromium Cr 24 Transition Metal Solid 51.996u [Ar]3d54s1 +6; +3; +2 1.66 189pm 6.767eV 0.666eV 2180K 2944K 7.15g/cm 1797
Iron Fe 26 Transition Metal Solid 55.84u [Ar]4s23d6 +3; +2 1.83 194pm 7.902eV 0.163eV 1811K 3134K 7.874g/cm Ancient
Cobalt Co 27 Transition Metal Solid 58.93319u [Ar]4s23d7 +3; +2 1.88 192pm 7.881eV 0.661eV 1768K 3200K 8.86g/cm 1735
Nickel Ni 28 Transition Metal Solid 58.693u [Ar]4s23d8 +3; +2 1.91 163pm 7.640eV 1.156eV 1728K 3186K 8.912g/cm 1751
Gallium Ga 31 Post-Transition Metal Solid 69.723u [Ar]4s23d104p1 +3 1.81 187pm 5.999eV 0.3eV 302.91K 2477K 5.91g/cm 1875
Germanium Ge 32 Metalloid Solid 72.63u [Ar]4s23d104p2 +4; +2 2.01 211pm 7.900eV 1.35eV 1211.4K 3106K 5.323g/cm 1886
Arsenic As 33 Metalloid Solid 74.92159u [Ar]4s23d104p3 +5; +3; -3 2.18 185pm 9.815eV 0.81eV 1090K 887K 5.776g/cm Ancient
Selenium Se 34 Nonmetal Solid 78.97u [Ar]4s23d104p4 +6; +4; -2 2.55 190pm 9.752eV 2.021eV 493.65K 958K 4.809g/cm 1817
Bromine Br 35 Halogen Liquid 79.90u [Ar]4s23d104p5 +5; +1; -1 2.96 183pm 11.814eV 3.365eV 265.95K 331.95K 3.11g/cm 1826
Yttrium Y 39 Transition Metal Solid 88.90584u [Kr]5s24d1 +3 1.22 219pm 6.217eV 0.307eV 1795K 3618K 4.47g/cm 1794
Zirconium Zr 40 Transition Metal Solid 91.22u [Kr]5s24d2 +4 1.33 186pm 6.634eV 0.426eV 2128K 4682K 6.52g/cm 1789
Niobium Nb 41 Transition Metal Solid 92.90637u [Kr]5s14d4 +5; +3 1.6 207pm 6.759eV 0.893eV 2750K 5017K 8.57g/cm 1801
Molybdenum Mo 42 Transition Metal Solid 95.95u [Kr]5s14d5 +6 2.16 209pm 7.092eV 0.746eV 2896K 4912K 10.2g/cm 1778
Technetium Tc 43 Transition Metal Solid 96.90636u [Kr]5s24d5 +7; +6; +4 1.9 209pm 7.28eV 0.55eV 2430K 4538K 11g/cm 1937
Ruthenium Ru 44 Transition Metal Solid 101.1u [Kr]5s14d7 +3 2.2 207pm 7.361eV 1.05eV 2607K 4423K 12.1g/cm 1827
Rhodium Rh 45 Transition Metal Solid 102.9055u [Kr]5s14d8 +3 2.28 195pm 7.459eV 1.137eV 2237K 3968K 12.4g/cm 1803
Palladium Pd 46 Transition Solid 106.42u [Kr]4d10 +3; +2 2.2 202pm 8.337eV 0.557eV 1828.05K 3236K 12.0g/cm 1803
Indium In 49 Post-Transition Metal Solid 114.818u [Kr]5s24d105p1 +3 1.78 193pm 5.786eV 0.3eV 429.75K 2345K 7.31g/cm 1863
Tin Sn 50 Post-Transition Metal Solid 118.71u [Kr]5s24d105p2 +4; +2 1.96 217pm 7.344eV 1.2eV 505.08K 2875K 7.287g/cm Ancient
Antimony Sb 51 Metalloid Solid 121.760u [Kr]5s24d105p3 +5; +3; -3 2.05 206pm 8.64eV 1.07eV 903.78K 1860K 6.685g/cm Ancient
Tellurium Te 52 Metalloid Solid 127.6u [Kr]5s24d105p4 +6; +4; -2 2.1 206pm 9.010eV 1.971eV 722.66K 1261K 6.232g/cm 1782
IodineHalogen I 53 nan Solid 126.9045u [Kr]5s24d105p5 +7; +5; +1; -1 2.66 198pm 10.451eV 3.059eV 386.85K 457.55K 4.93g/cm 1811
Cesium Cs 55 Alkali Metal Solid 132.9054520u [Xe]6s1 +1 0.79 343pm 3.894eV 0.472eV 301.59K 944K 1.93g/cm 1860
Lanthanum La 57 Lanthanide Solid 138.9055u [Xe]6s25d1 +3 1.1 240pm 5.577eV 0.5eV 1191K 3737K 6.15g/cm 1839
Cerium Ce 58 Lanthanide Solid 140.116u [Xe]6s24f15d1 +4; +3 1.12 235pm 5.539eV 0.5eV 1071K 3697K 6.770g/cm 1803
Tantalum Ta 73 Transition Metal Solid 180.9479u [Xe]6s24f145d3 +5 1.5 217pm 7.89eV 0.322eV 3290K 5731K 16.4g/cm 1802
Tungsten W 74 Transition Metal Solid 183.84u [Xe]6s24f145d4 +6 2.36 210pm 7.98eV 0.815eV 3695K 5828K 19.3g/cm 1783
Rhenium Re 75 Transition Metal Solid 186.207u [Xe]6s24f145d5 +7; +6; +4 1.9 217pm 7.88eV 0.15eV 3459K 5869K 20.8g/cm 1925
Osmium Os 76 Transition Metal Solid 190.2u [Xe]6s24f145d6 +4; +3 2.2 216pm 8.7eV 1.1eV 3306K 5285K 22.57g/cm 1803
Iridium Ir 77 Transition Metal Solid 192.22u [Xe]6s24f145d7 +4; +3 2.2 202pm 9.1eV 1.565eV 2719K 4701K 22.42g/cm 1803
Platinum Pt 78 Transition Metal Solid 195.08u [Xe]6s14f145d9 +4; +2 2.28 209pm 9eV 2.128eV 2041.55K 4098K 21.46g/cm 1735
Gold Au 79 Transition Metal Solid 196.96657u [Xe]6s14f145d10 +3; + ; 2.54 166pm 9.226eV 2.309eV 1337.33K 3129K 19.282g/cm Ancient
Thallium Tl 81 Post-Transition Metal Solid 204.383u [Xe]6s24f145d106p1 +3; +1 1.62 196pm 6.108eV 0.2eV 577K 1746K 11.8g/cm 1861
Lead Pb 82 Post-Transition Metal Solid 207u [Xe]6s24f145d106p2 +4; +2 2.33 202pm 7.417eV 0.36eV 600.61K 2022K 11.342g/cm Ancient
Bismuth Bi 83 Post-Transition Metal Solid 208.98040u [Xe]6s24f145d106p3 +5; +3 2.02 207pm 7.289eV 0.946eV 544.55K 1837K 9.807g/cm 1753
Polonium Po 84 Metalloid Solid 208.98243u [Xe]6s24f145d106p4 +4; +2 2 197pm 8.417eV 1.9eV 527K 1235K 9.32g/cm 1898