140.116 Cerium 58 2 8 18 19 9 2 Ce 140.90765 Praseodymium 59 2 8 18 21 8 2 Pr 144.242 Neodymium 60 2 8 18 22 8 2 Nd (145) Promethium 61 2 8 18 23 8 2 Pm 150.36 Samarium 62 2 8 18 24 8 2 Sm 151.964 Europium 63 2 8 18 25 8 2 Eu 157.25 Gadolinium 64 2 8 18 25 9 2 Gd 158.92535 Terbium 65 2 8 18 27 8 2 Tb 162.5 Dysprosium 66 2 8 18 28 8 2 Dy 164.93032 Holmium 67 2 8 18 29 8 2 Ho 167.259 Erbium 68 2 8 18 30 8 2 Er 168.93421 Thulium 69 2 8 18 31 8 2 Tm 173.054 Ytterbium 70 2 8 18 32 8 2 Yb 174.9668 Lutetium 71 2 8 18 32 9 2 Lu 232.03806 Thorium 90 2 8 18 32 18 10 2 Th 231.03588 Protactinium 91 2 8 18 32 20 9 2 Pa 238.02891 Uranium 92 2 8 18 32 21 9 2 U (237) Neptunium 93 2 8 18 32 22 9 2 Np (244) Plutonium 94 2 8 18 32 24 8 2 Pu (243) Americium 95 2 8 18 32 25 8 2 Am (247) Curium 96 2 8 18 32 25 9 2 Cm (247) Berkelium 97 2 8 18 32 27 8 2 Bk (251) Californium 98 2 8 18 32 28 8 2 Cf (252) Einsteinium 99 2 8 18 32 29 8 2 Es (257) Fermium 100 2 8 18 32 30 8 2 Fm (258) Mendelevium 101 2 8 18 32 31 8 2 Md (259) Nobelium 102 2 8 18 32 32 8 2 No (262) Lawrencium 103 2 8 18 32 32 8 3 Lr 1.00794 Hydrogen 1 1 H 6.941 Lithium 3 2 1 Li 9.012182 Beryllium 4 2 2 Be 22.98976928 Sodium 11 2 8 1 Na 24.305 Magnesium 12 2 8 2 Mg 39.0983 Potassium 19 2 8 8 1 K 40.078 Calcium 20 2 8 8 2 Ca 85.4678 Rubidium 37 2 8 18 8 1 Rb 87.62 Strontium 38 2 8 18 8 2 Sr 132.9054 Cesium 55 2 8 18 18 8 1 Cs 137.327 Barium 56 2 8 18 18 8 2 Ba (223) Francium 87 2 8 18 32 18 8 1 Fr (226) Radium 88 2 8 18 32 18 8 2 Ra 44.955912 Scandium 21 2 8 9 2 Sc 47.867 Titanium 22 2 8 10 2 Ti 50.9415 Vanadium 23 2 8 11 2 V 51.9961 Chromium 24 2 8 13 1 Cr 54.938045 Manganese 25 2 8 13 2 Mn 55.845 Iron 26 2 8 14 2 Fe 58.933195 Cobalt 27 2 8 15 2 Co 58.6934 Nickel 28 2 8 16 2 Ni 63.546 Copper 29 2 8 18 1 Cu 65.38 Zinc 30 2 8 18 2 Zn 88.90585 Yttrium 39 2 8 18 9 2 Y 91.224 Zirconium 40 2 8 18 10 2 Zr 92.90638 Niobium 41 2 8 18 12 1 Nb 95.96 Molybdenum 42 2 8 18 13 1 Mo (98.0) Technetium 43 2 8 18 13 2 Tc 101.07 Ruthenium 44 2 8 18 15 1 Ru 102.9055 Rhodium 45 2 8 18 16 1 Rh 106.42 Palladium 46 2 8 18 18 Pd 107.8682 Silver 47 2 8 18 18 1 Ag 112.411 Cadmium 48 2 8 18 18 2 Cd 138.90547 Lanthanum 57 2 8 18 18 9 2 La 178.48 Hafnium 72 2 8 18 32 10 2 Hf 180.9488 Tantalum 73 2 8 18 32 11 2 Ta 183.84 Tungsten 74 2 8 18 32 12 2 W 186.207 Rhenium 75 2 8 18 32 13 2 Re 190.23 Osmium 76 2 8 18 32 14 2 Os 192.217 Iridium 77 2 8 18 32 15 2 Ir 195.084 Platinum 78 2 8 18 32 17 1 Pt 196.966569 Gold 79 2 8 18 32 18 1 Au 200.59 Mercury 80 2 8 18 32 18 2 Hg (227) Actinium 89 2 8 18 32 18 9 2 Ac (267) Rutherfordium 104 2 8 18 32 32 10 2 Rf (268) Dubnium 105 2 8 18 32 32 11 2 Db (271) Seaborgium 106 2 8 18 32 32 12 2 Sg (272) Bohrium 107 2 8 18 32 32 13 2 Bh (270) Hassium 108 2 8 18 32 32 14 2 Hs (276) Meitnerium 109 2 8 18 32 32 15 2 Mt (281) Darmstadtium 110 2 8 18 32 32 17 1 Ds (280) Roentgenium 111 2 8 18 32 32 18 1 Rg (285) Copernicium 112 2 8 18 32 32 18 2 Cn 4.002602 Helium 2 2 He 10.811 Boron 5 2 3 B 12.0107 Carbon 6 2 4 C 14.0067 Nitrogen 7 2 5 N 15.9994 Oxygen 8 2 6 O 18.9984032 Fluorine 9 2 7 F 20.1797 Neon 10 2 8 Ne 26.9815386 Aluminum 13 2 8 3 Al 28.0855 Silicon 14 2 8 4 Si 30.973762 Phosphorus 15 2 8 5 P 32.065 Sulfur 16 2 8 6 S 35.453 Chlorine 17 2 8 7 Cl 39.948 Argon 18 2 8 8 Ar 69.723 Gallium 31 2 8 18 3 Ga 72.64 Germanium 32 2 8 18 4 Ge 74.9216 Arsenic 33 2 8 18 5 As 78.96 Selenium 34 2 8 18 6 Se 79.904 Bromine 35 2 8 18 7 Br 83.798 Krypton 36 2 8 18 8 Kr 114.818 Indium 49 2 8 18 18 3 In 118.71 Tin 50 2 8 18 18 4 Sn 121.76 Antimony 51 2 8 18 18 5 Sb 127.6 Tellurium 52 2 8 18 18 6 Te 126.90447 Iodine 53 2 8 18 18 7 I 131.293 Xenon 54 2 8 18 18 8 Xe 204.3833 Thallium 81 2 8 18 32 18 3 Tl 207.2 Lead 82 2 8 18 32 18 4 Pb 208.9804 Bismuth 83 2 8 18 32 18 5 Bi (209) Polonium 84 2 8 18 32 18 6 Po (210) Astatine 85 2 8 18 32 18 7 At (222) Radon 86 2 8 18 32 18 8 Rn (284) Nihonium 113 2 8 18 32 32 18 3 (289) Flerovium 114 2 8 18 32 32 18 4 Fl (288) Moscovium 115 2 8 18 32 32 18 5 (293) Livermorium 116 2 8 18 32 32 18 6 Lv (294) Tennessine 117 2 8 18 32 32 18 7 (294) Oganesson 118 2 8 18 32 32 18 8 Nh Mc Ts Og © 1997-2025. American Elements is a U.S. Registered Trademark www.americanelements.com American Elements Opens a World of Possibilities...Now Invent! TM Now Invent. THE NEXT GENERATION OF MATERIALS SCIENCE MANUFACTURERS Bulk & lab scale manufacturers of over 35,000 certified high purity compounds, chemicals, metals, and nanoparticles, including a wide range of materials with applications in industries such as aerospace, automotive, military, pharmaceutical, and electronics, all engineered to meet the most rigorous quality standards.
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