The purpose of the table is to provide information about chemical elements in a single place for an easy comparison. These details are: name of the chemical element, symbol, atomic number, density (g/cm3), atomic mass, number of protons, number of electrons, number of neutrons, number of energy levels, number of electrons on the outer energy level, classification, date of discovery, and melting and boiling point.

Chemical Elements Detailed Table

Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Hydrogen H 1 0.089 1.007 1 1 0 1 1 Non Metals 1766 -259.14 -252.87
Helium He 2 0.178 4.002 2 2 2 1 2 Noble Gas 1895 -272.0 -268.6
Lithium Li 3 0.53 6.941 3 3 4 2 1 Alkali Metal 1817 180.54 1347
Beryllium Be 4 1.847 9.012 4 4 5 2 2 Alkaline Earth 1798 1278 2970
Boron B 5 2.34 10.811 5 5 6 2 3 Metalloid 1808 2300 2550
Carbon C 6 2.62 12.010 6 6 6 2 4 Non Metals known 3500 4827
Nitrogen N 7 1.250 14.006 7 7 7 2 5 Non Metals 1772 -209.9 -195.8
Oxygen O 8 1.429 15.999 8 8 8 2 6 Non Metals 1774 -218.4 -183.0
Fluorine F 9 1.696 18.998 9 9 10 2 7 Halogen 1886 -219.62 -188.14
Neon Ne 10 0.901 20.179 10 10 10 2 8 Noble Gas 1898 -248.6 -246.1
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Sodium Na 11 0.971 22.989 11 11 12 3 1 Alkali Metal 1807 97.72 883
Magnesium Mg 12 1.738 24.305 12 12 12 3 2 Alkaline Earth 1808 650 1107
Aluminum Al 13 2.702 26.981 13 13 14 3 3 Other Metals 1825 660.37 2467
Silicon Si 14 2.329 28.085 14 14 14 3 4 Metalloid 1823 1410 2355
Phosphorus P 15 1.82 30.973 15 15 16 3 5 Non Metals 1669 44.1 280
Sulfur S 16 2.07 32.066 16 16 16 3 6 Non Metals known 112.8 444.6
Chlorine Cl 17 3.214 35.452 17 17 18 3 7 Halogen 1774 -100.98 -34.6
Argon Ar 18 1.784 39.948 18 18 22 3 8 Noble Gas 1894 -189.3 -186
Potassium K 19 0.862 39.098 19 19 20 4 1 Alkaline Earth 1807 63.65 774
Calcium Ca 20 1.55 40.078 20 20 20 4 2 Alkaline Earth 1808 839 1484
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Scandium Sc 21 2.989 44.955 21 21 24 4 2 Transition Metals 1879 1539 2832
Titanium Ti 22 4.54 47.867 22 22 26 4 2 Transition Metals 1791 1660 3287
Vanadium V 23 5.8 50.941 23 23 28 4 2 Transition Metals 1830 1890 3380
Chromium Cr 24 7.19 51.996 24 24 28 4 1 Transition Metals 1797 1857 2672
Manganese Mn 25 7.43 54.938 25 25 30 4 2 Transition Metals 1774 1245 1962
Iron Fe 26 7.86 55.845 26 26 30 4 2 Transition Metals known 1535 2750
Cobalt Co 27 8.9 58.933 27 27 32 4 2 Transition Metals 1737 1495 2870
Nickel Ni 28 8.902 58.693 28 28 31 4 2 Transition Metals 1751 1453 2732
Copper Cu 29 8.96 63.546 29 29 35 4 1 Transition Metals known 1083 2567
Zinc Zn 30 7.133 65.39 30 30 35 4 2 Transition Metals 1746 419.58 907
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Gallium Ga 31 5.907 69.723 31 31 39 4 3 Other Metals 1875 29.78 2403
Germanium Ge 32 5.323 72.61 32 32 41 4 4 Metalloid 1886 937.4 2830
Arsenic As 33 5.72 74.921 33 33 42 4 5 Metalloid known 817 613
Selenium Se 34 4.79 78.96 34 34 45 4 6 Non Metals 1817 217 684.9
Bromine Br 35 3.119 79.904 35 35 45 4 7 Halogen 1826 -7.2 58.78
Krypton Kr 36 3.74 83.8 36 36 48 4 8 Noble Gas 1898 -157.2 -153.4
Rubidium Rb 37 1.532 85.467 37 37 48 5 1 Alkali Metal 1861 38.89 688
Strontium Sr 38 2.54 87.62 38 38 50 5 2 Alkaline Earth 1790 769 1384
Yttrium Y 39 4.469 88.905 39 39 50 5 2 Transition Metals 1794 1523 3337
Zirconium Zr 40 6.49 91.224 40 40 51 5 2 Transition Metals 1789 1852 4377
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Niobium Nb 41 8.57 92.906 41 41 52 5 1 Transition Metals 1801 2468 4927
Molybdenum Mo 42 10.22 95.94 42 42 54 5 1 Transition Metals 1778 2617 4612
Technetium Tc 43 11.5 98 43 43 55 5 1 Transition Metals 1937 2200 4877
Ruthenium Ru 44 12.2 101.07 44 44 57 5 1 Transition Metals 1844 2250 3900
Rhodium Rh 45 12.41 102.905 45 45 58 5 1 Transition Metals 1803 1966 3727
Palladium Pd 46 12.02 106.42 46 46 60 5 0 Transition Metals 1803 1552 2927
Silver Ag 47 10.5 107.868 47 47 61 5 1 Transition Metals known 961.93 2212
Cadmium Cd 48 8.65 112.411 48 48 64 5 2 Transition Metals 1817 320.9 765
Indium In 49 7.31 114.818 49 49 66 5 3 Other Metals 1863 156.61 2000
Tin Sn 50 7.31 118.71 50 50 69 5 4 Other Metals known 231.9 2270
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Antimony Sb 51 6.684 121.76 51 51 71 5 5 Metalloid known 630 1750
Tellurium Te 52 6.24 127.6 52 52 76 5 6 Metalloid 1782 449.5 989.8
Iodine I 53 4.93 126.904 53 53 74 5 7 Halogen 1811 113.5 184
Xenon Xe 54 5.897 131.29 54 54 77 5 8 Noble Gas 1898 -111.9 -108.1
Cesium Cs 55 1.873 132.905 55 55 78 6 1 Alkali Metal 1860 28.5 678.4
Barium Ba 56 3.51 137.327 56 56 81 6 2 Alkaline Earth 1808 725 1140
Lanthanum La 57 6.7 138.905 57 57 82 6 2 Rare Earth 1839 920 3469
Cerium Ce 58 6.773 140.116 58 58 82 6 2 Rare Earth 1803 759 3257
Praseodymium Pr 59 6.77 140.907 59 59 82 6 2 Rare Earth 1885 935 3127
Neodymium Nb 60 7.007 144.24 60 60 84 6 2 Rare Earth 1925 1010 3127
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Promethium Pm 61 6.475 145 61 61 84 6 2 Rare Earth 1945 1024 3000
Samarium Sm 62 7.54 150.36 62 62 88 6 2 Rare Earth 1879 1072 1900
Europium Eu 63 5.259 151.964 63 63 89 6 2 Rare Earth 1901 822 1597
Gadolinium Gd 64 7.895 157.25 64 64 93 6 2 Rare Earth 1880 1311 3233
Terbium Tb 65 8.27 158.925 65 65 94 6 2 Rare Earth 1843 1360 3041
Dysprosium Dy 66 8.536 162.5 66 66 97 6 2 Rare Earth 1886 1412 2562
Holmium Ho 67 8.54 164.930 67 67 98 6 2 Rare Earth 1878 1470 2720
Erbium Er 68 8.795 167.26 68 68 99 6 2 Rare Earth 1843 1522 2510
Thulium Tm 69 9.321 168.934 69 69 100 6 2 Rare Earth 1879 1545 1727
Ytterbium Yb 70 6.98 173.04 70 70 103 6 2 Rare Earth 1872 824 1466
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Lutetium Lu 71 9.85 174.967 71 71 104 6 2 Rare Earth 1907 1656 3315
Hafnium Hf 72 13.2 178.49 72 72 106 6 2 Transition Metals 1923 2150 5400
Tantalum Ta 73 16.654 180.947 73 73 108 6 2 Transition Metals 1802 2996 5425
Tungsten W 74 19.3 183.84 74 74 110 6 2 Transition Metals 1783 3410 5660
Rhenium Re 75 21.02 186.207 75 75 111 6 2 Transition Metals 1925 3180 5627
Osmium Os 76 22.4 190.23 76 76 114 6 2 Transition Metals 1803 3045 5027
Iridium Ir 77 22.5 192.217 77 77 115 6 2 Transition Metals 1804 2410 4527
Platinum Pt 78 21.45 195.078 78 78 117 6 1 Transition Metals 1735 1772 3827
Gold Au 79 19.32 196.966 79 79 118 6 1 Transition Metals known 1064.43 2807
Mercury Hg 80 13.456 200.59 80 80 121 6 2 Transition Metals known -38.87 356.58
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Thallium Tl 81 11.85 204.383 81 81 123 6 3 Other Metals 1861 303.5 1457
Lead Pb 82 11.34 207.2 82 82 125 6 4 Other metals known 327.5 1740
Bismuth Bi 83 9.8 208.980 83 83 126 6 5 Other Metals known 271.3 1560
Polonium Po 84 9.4 209 84 84 125 6 6 Metalloid 1898 254 962
Astatine At 85 unknown 210 85 85 125 6 7 Halogen 1940 302 337
Radon Rn 86 9.73 222 86 86 136 6 8 Noble Gas 1898 -71 -61.8
Francium Fr 87 unknown 223 87 87 136 7 1 Alkali Metal 1939 27 677
Radium Ra 88 5 226 88 88 138 7 2 Alkaline Earth 1898 700 1737
Actinium Ac 89 10.07 227 89 89 138 7 2 Rare Earth 1899 1050 3200
Thorium Th 90 11.72 232.038 90 90 142 7 2 Rare Earth 1828 1750 4790
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Protactinium Pa 91 15.4 231.035 91 91 140 7 2 Rare Earth 1917 1600 -
Uranium U 92 18.95 238.028 92 92 146 7 2 Rare Earth 1789 1132 3818
Neptunium Np 93 20.45 237 93 93 144 7 2 Rare Earth 1940 640 3902
Plutonium Pu 94 19.84 244 94 94 150 7 2 Rare Earth 1940 639.5 3235
Americium Am 95 13.6 243 95 95 148 7 2 Rare Earth 1945 994 2607
Curium Cm 96 13.511 247 96 96 151 7 2 Rare Earth 1944 1340 -
Berkelium Bk 97 - 247 97 97 150 7 2 Rare Earth 1949 - -
Californium Cf 98 - 251 98 98 153 7 2 Rare Earth 1950 - -
Einsteinium Es 99 - 252 99 99 153 7 2 Rare Earth 1952 - -
Fermium Fm 100 - 257 100 100 157 7 2 Rare Earth 1953 - -
Name Symb. At.No Density g/cm3 At. mass AMU No. of protons/ electrons/ neutrons No. of energy levels No. of electrons on the outer energy level Class Date of disc. Melting/ Boiling point 0C
Mendelevium Md 101 - 258 101 101 157 7 2 Rare Earth 1955 - -
Nobelium No 102 - 259 102 102 157 7 2 Rare Earth 1957 - -
Lawrencium Lr 103 - 262 103 103 159 7 2 Rare Earth 1961 - -
Rutherfordium Rf 104 - 261 104 104 157 7 2 Transition Metal 1969 - -
Dubnium Db 105 - 262 105 105 157 7 2 Transition Metals 1970 - -
Seaborgium Sg 106 - 263 106 106 157 7 2 Transition Metals 1974 - -
Bohrium Bh 107 - 262 107 107 155 7 2 Transition Metals 1976 - -
Hassium Hs 108 - 265 108 108 157 7 2 Transition Metals 1984 - -
Meitnerium Mt 109 - 266 109 109 157 7 2 Transition Metals 1982 - -
Darmstadtium Ds 110 - 281 110 110 151 7 2 Transition Metals 1994 - -
Roentgenium Rg 111 - 272 111 111 161 7 2 Transition Metals 1994 - -
Copernicium Cn 112 23.7 285 112 112 165 7 2 Transition Metals 1996 - -
Ununtrium Uut 113 16 285 113 113 173 7 3 Transition Metals 2003 430 1130
Flerovium Fl 114 14 289 114 114 175 7 4 Transition Metals 1998 340 420
Ununpentium Uup 115 13.5 289 115 115 174 7 5 Transition Metals 2003 400 1100
Livermorium Lv 116 12.9 293 116 116 177 7 6 Transition Metals 2000 364-507 762-862
Ununseptium Uus 117 7.1-7.3 294 117 117 175 7 7 Transition Metals 2010 300-500 550
Ununoctium Uuo 118 4.9-5.1 294 118 118 176 7 8 Noble Gas 2002 -15 80