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Chemical Elements by Name
Chemical Properties, Physical Properties and General Information


Radioactive Material Sign
Radioactive Natural Element		 Radioactive Material Sign
Radioactive Synthetic Element		 Toxic Material Sign
Toxic Element
Name Sym. Atomic
Number		 Atomic
Weight		 Melting
Point		 Boiling
Point		 Phase Density Classification
Actinium Ac 89 227 1050 °C 3198 °C Solid 10 g/cm3 Metal Radioactive Natural Element
Aluminum (Aluminium) Al 13 26.9815386 660.32 °C 2519 °C Solid 2.70 g/cm3 Metal Toxic Element
Americium Am 95 243 1176 °C 2607 °C Solid 13.6 g/cm3 Metal Radioactive Synthetic Element Toxic Element
Antimony (Stibium) Sb 51 121.760 630.63 °C 1587 °C Solid 6.697 g/cm3 Semi-Metal Toxic Element
Argon Ar 18 39.948 -189.35 °C -185.85 °C Gas 1.784 g/L Noble Gas
Arsenic As 33 74.92160 817 °C 614 °C Solid 5.727 g/cm3 Semi-Metal Toxic Element
Astatine At 85 210 302 °C 337 °C Solid 7 g/cm3 Semi-Metal Radioactive Synthetic Element
Barium Ba 56 137.327 727 °C 1897 °C Solid 3.51 g/cm3 Alkaline Earth MetalToxic Element
Berkelium Bk 97 247 1050 °C Unknown Solid 14 g/cm3 Metal Radioactive Synthetic Element
Beryllium Be 4 9.012182 1287 °C 2469 °C Solid 1.85 g/cm3 Alkaline Earth MetalToxic Element
Bismuth Bi 83 208.98040 271.5 °C 1564 °C Solid 9.78 g/cm3 Metal
Bohrium Bh 107 264 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Boron B 5 10.811 2076 °C 3927 °C Solid 2.34 g/cm3 Semi-Metal Toxic Element
Bromine Br 35 79.904 -7.3 °C 58.8 °C Liquid 3.1028 g/cm3 Non-Metal Toxic Element
Cadmium Cd 48 112.411 321.07 °C 767 °C Solid 8.65 g/cm3 Metal Toxic Element
Calcium Ca 20 40.078 842 °C 1484 °C Solid 1.55 g/cm3 Alkaline Earth Metal
Californium Cf 98 251 900 °C Unknown Solid Unknown Metal Radioactive Synthetic Element
Carbon C 6 12.0107 3550°C 3800 °C Solid 2.267 g/cm3 Non-Metal
Cerium Ce 58 140.116 795 °C 3443 °C Solid 6.770 g/cm3 Metal
Cesium (Caesium) Cs 55 132.9054519 28.44 °C 671 °C Solid 1.93 g/cm3 Alkali Metal
Chlorine Cl 17 35.453 -101.5 °C -34.04 °C Gas 3.2 g/L Non-Metal Toxic Element
Chromium Cr 24 51.9961 1907 °C 2671 °C Solid 7.15 g/cm3 Metal Toxic Element
Cobalt Co 27 58.933195 1495 °C 2927 °C Solid 8.90 g/cm3 Metal Toxic Element
Copernicium Cn 112 285 Unknown Unknown Liquid Unknown Metal Radioactive Synthetic Element
Copper (Cuprum) Cu 29 63.546 1084.62 °C 2562 °C Solid 8.96 g/cm3 Metal Toxic Element
Curium Cm 96 247 1340 °C 3110 °C Solid 13.51 g/cm3 Metal Radioactive Synthetic Element
Darmstadtium Ds 110 271 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Dubnium Db 105 262 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Dysprosium Dy 66 162.500 1407 °C 2567 °C Solid 8.540 g/cm3 Metal
Einsteinium Es 99 252 860 °C Unknown Solid Unknown Metal Radioactive Synthetic Element
Erbium Er 68 167.259 1529 °C 2868 °C Solid 9.066 g/cm3 Metal
Europium Eu 63 151.964 826 °C 1529 °C Solid 5.244 g/cm3 Metal
Fermium Fm 100 257 1527 °C Unknown Solid Unknown Metal Radioactive Synthetic Element
Fluorine F 9 18.9984032 -219.62 °C -188.12 °C Gas 1.7 g/L Non-Metal Toxic Element
Francium Fr 87 223 27 °C 677 °C Solid 1.87 g/cm3 Alkali Metal Radioactive Natural Element
Gadolinium Gd 64 157.25 1312 °C 3273 °C Solid 7.90 g/cm3 Metal
Gallium Ga 31 69.723 29.7646 °C 2204 °C Solid 5.91 g/cm3 Metal
Germanium Ge 32 72.64 938.25 °C 2833 °C Solid 5.323 g/cm3 Semi-Metal
Gold (Aurum) Au 79 196.966569 1064.18 °C 2856 °C Solid 19.3 g/cm3 Noble Metal
Hafnium Hf 72 178.49 2233 °C 4603 °C Solid 13.31 g/cm3 Metal
Hassium Hs 108 277 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Helium He 2 4.002602 -272.2 °C -268.93 °C Gas 0.1786 g/L Noble Gas
Holmium Ho 67 164.93032 1461 °C 2720 °C Solid 8.79 g/cm3 Metal
Hydrogen H 1 1.00794 -259.14 °C -252.87 °C Gas 0.08988 g/L Non-Metal
Indium In 49 114.818 156.60 °C 2072 °C Solid 7.31 g/cm3 Metal
Iodine I 53 126.904 113.7 °C 184.3 °C Solid 4.933 g/cm3 Non-Metal Toxic Element
Iridium Ir 77 192.217 2446 °C 4428 °C Solid 22.65 g/cm3 Noble Metal
Iron (Ferrum) Fe 26 55.845 1538 °C 2861 °C Solid 7.86 g/cm3 Metal
Krypton Kr 36 83.798 -157.36 °C -153.22 °C Gas 3.749 g/L Noble Gas
Lanthanum La 57 138.90547 920 °C 3464 °C Solid 6.162 g/cm3 Metal
Lawrencium Lr 103 262 1627 °C Unknown Solid Unknown Metal Radioactive Synthetic Element
Lead (Plumbum) Pb 82 207.2 327.46 °C 1749 °C Solid 11.34 g/cm3 Metal Toxic Element
Lithium Li 3 6.941 180.54 °C 1342 °C Solid 0.534 g/cm3 Alkali Metal
Lutetium Lu 71 174.967 1652 °C 3402 °C Solid 9.841 g/cm3 Metal
Magnesium Mg 12 24.3050 650 °C 1090 °C Solid 1.738 g/cm3 Alkaline Earth Metal
Manganese Mn 25 54.938045 1246 °C 2061 °C Solid 7.43 g/cm3 Metal Toxic Element
Meitnerium Mt 109 268 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Mendelevium Md 101 258 827 °C Unknown Solid Unknown Metal Radioactive Synthetic Element
Mercury (Hydrargyrum) Hg 80 200.59 -38.83 °C 356.73 °C Liquid 13.534 g/cm3 Metal Toxic Element
Molybdenum Mo 42 95.94 2623 °C 4639 °C Solid 10.28 g/cm3 Metal
Neodymium Nd 60 144.242 1024 °C 3074 °C Solid 7.01 g/cm3 Metal
Neon Ne 10 20.1797 -248.59 °C -246.08 °C Gas 0.9002 g/L Noble Gas
Neptunium Np 93 237 637 °C 4000 °C Solid 20.2 g/cm3 Metal Radioactive Natural Element Toxic Element
Nickel Ni 28 58.6934 1455 °C 2913 °C Solid 8.908 g/cm3 Metal Toxic Element
Niobium Nb 41 92.906 2477 °C 4744 °C Solid 8.57 g/cm3 Metal
Nitrogen N 7 14.0067 -210.00 °C -195.79 °C Gas 1.251 g/L Non-Metal
Nobelium No 102 259 827 °C Unknown Solid Unknown Metal Radioactive Synthetic Element
Osmium Os 76 190.23 3033 °C 5012 °C Solid 22.61 g/cm3 Noble Metal
Oxygen O 8 15.9994 -218.79 °C -182.95 °C Gas 1.429 g/L Non-Metal
Palladium Pd 46 106.42 1554.9 °C 2963 °C Solid 12.023 g/cm3 Noble Metal
Phosphorus P 15 30.973762 44.2 °C 277 °C Solid 1.82 g/cm3 Non-Metal Toxic Element
Platinum Pt 78 195.084 1768.3 °C 3825 °C Solid 21.45 g/cm3 Noble Metal
Plutonium Pu 94 244 639.4 °C 3228 °C Solid 19.816 g/cm3 Metal Radioactive Natural Element Toxic Element
Polonium Po 84 209 254 °C 962 °C Solid 9.32 g/cm3 Metal Radioactive Natural Element Toxic Element
Potassium (Kalium) K 19 39.0983 63.38 °C 759 °C Solid 0.89 g/cm3 Alkali Metal
Praseodymium Pr 59 140.90765 935 °C 3520 °C Solid 6.77 g/cm3 Metal
Promethium Pm 61 145 1042 °C 3000 °C Solid 7.26 g/cm3 Metal Radioactive Synthetic Element
Protactinium Pa 91 231.03588 1568 °C 4027 °C Solid 15.37 g/cm3 Metal Radioactive Synthetic Element
Radium Ra 88 226 700 °C 1737 °C Solid 5.5 g/cm3 Alkaline Earth Metal
Radioactive Natural Element Toxic Element
Radon Rn 86 222 -71.15 °C -61.85 °C Gas 9.73 g/L Noble Gas Radioactive Natural Element Toxic Element
Rhenium Re 75 186.207 3186 °C 5596 °C Solid 21.02 g/cm3 Noble Metal
Rhodium Rh 45 102.905 1964 °C 3695 °C Solid 12.41 g/cm3 Noble Metal
Roentgenium Rg 111 272 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Rubidium Rb 37 85.4678 39.31 °C 688 °C Solid 1.532 g/cm3 Alkali Metal
Ruthenium Ru 44 101.07 2334 °C 4150 °C Solid 12.45 g/cm3 Noble Metal
Rutherfordium Rf 104 261 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Samarium Sm 62 150.36 1072 °C 1794 °C Solid 7.52 g/cm3 Metal
Scandium Sc 21 44.955912 1541 °C 2836 °C Solid 2.985 g/cm3 Metal
Seaborgium Sg 106 266 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Selenium Se 34 78.96 221 °C 685 °C Solid 4.809 g/cm3 Non-Metal Toxic Element
Silicon Si 14 28.0855 1414 °C 3265 °C Solid 2.33 g/cm3 Semi-Metal
Silver (Argentum) Ag 47 107.8682 961.78 °C 2162 °C Solid 10.49 g/cm3 Noble Metal Toxic Element
Sodium (Natrium) Na 11 22.98976928 97.72 °C 883 °C Solid 0.968 g/cm3 Alkali Metal
Strontium Sr 38 87.62 777 °C 1382 °C Solid 2.64 g/cm3 Alkaline Earth Metal Toxic Element
Sulfur S 16 32.065 115.21 444.6 °C Solid 2.067 g/cm3 Non-Metal
Tantalum Ta 73 180.94788 3017 °C 5458 °C Solid 16.69 g/cm3 Noble Metal
Technetium Tc 43 98 2157 °C 4265 °C Solid 11g/cm3 Metal Radioactive Synthetic Element
Tellurium Te 52 127.60 449.51 °C 988 °C Solid 6.24 g/cm3 Semi-Metal
Terbium Tb 65 158.92535 1356 °C 3230 °C Solid 8.23 g/cm3 Metal
Thallium Tl 81 204.3833 304 °C 1473 °C Solid 11.85 g/cm3 Metal Toxic Element
Thorium Th 90 232.03806 1842 °C 4788 °C Solid 11.7 g/cm3 Metal Radioactive Natural Element Toxic Element
Thulium Tm 69 168.93421 1545 °C 1950 °C Solid 9.32 g/cm3 Metal
Tin (Stannum) Sn 50 118.710 231.93 °C 2602 °C Solid 7.287 g/cm3 Metal
Titanium Ti 22 47.867 1668 °C 3287 °C Solid 4.506 g/cm3 Metal
Tungsten (Wolfram) W 74 183.84 3422 °C 5555 °C Solid 19.25 g/cm3 Metal
Ununhexium Uuh 116 292 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Ununoctium Uuo 118 294 Unknown Unknown Gas Unknown Noble Gas Radioactive Synthetic Element
Ununpentium Uup 115 288 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Ununquadium Uuq 114 289 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Ununseptium Uus 117 294 ? Unknown Unknown Solid ? Unknown Metal ? Radioactive Synthetic Element
Ununtrium Uut 113 284 Unknown Unknown Solid Unknown Metal Radioactive Synthetic Element
Uranium U 92 238.02891 1132.2 °C 4131 °C Solid 19.1 g/cm3 Metal Radioactive Natural Element Toxic Element
Vanadium V 23 50.9415 1910 °C 3407 °C Solid 6.0 g/cm3 Metal Toxic Element
Xenon Xe 54 131.293 -111.7 °C -108.12 °C Gas 5.894 g/L Noble Gas
Ytterbium Yb 70 173.04 824 °C 1196 °C Solid 6.90 g/cm3 Metal
Yttrium Y 39 88.90585 1526 °C 3336 °C Solid 4.472 g/cm3 Metal
Zinc Zn 30 65.409 419.53 °C 907 °C Solid 7.14 g/cm3 Metal Toxic Element
Zirconium Zr 40 91.224 1855 °C 4409 °C Solid 6.52 g/cm3 Metal


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