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Periodic

Periodic. Table of the. The color of the. 6. Atomic number. Elements. chemical sym-. C. bol indicates the. Chemical symbol. physical state at. Each square on the table includes an. room temperature. Element name. element’s name, chemical symbol,. Carbon is a solid.

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Periodic

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  1. Periodic Table of the The color of the 6 Atomic number Elements chemical sym- C bol indicates the Chemical symbol physical state at Each square on the table includes an room temperature. Element name element’s name, chemical symbol, Carbon is a solid. atomic number, and atomic mass. Atomic mass The background color indicates the type of element. Carbon is a nonmetal. 1 Group 18 H Period 1 2 Hydrogen He 1.0 Chemical symbol Background Helium Solid Metals 4.0 Group 1 Group 2 Group 13 Group 14 Group 15 Group 16 Group 17 Liquid Metalloids 3 4 5 6 7 8 9 10 This zigzag line Li Be B C N O F Ne Gas Nonmetals reminds you where Period 2 Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon the metals, nonmetals, 6.9 9.0 10.8 12.0 14.0 16.0 19.0 20.2 and metalloids are. 11 12 13 14 15 16 17 18 Na Mg Al Si P S Cl Ar Period 3 Sodium Magnesium Aluminum Silicon Phosphorus Sulfur Chlorine Argon 23.0 24.3 Group 3 Group 4 Group 5 Group 6 Group 7 Group 8 Group 9 27.0 28.1 31.0 32.1 35.5 Group 10 Group 11 Group 12 39.9 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Period 4 Potassium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Calcium Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton 39.1 40.1 45.0 47.9 50.9 52.0 54.9 55.8 58.9 58.7 63.5 65.4 69.7 72.6 74.9 79.0 79.9 83.8 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Period 5 Rubidium Yttrium Zirconium Niobium Technetium Ruthenium Rhodium Strontium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Molybdenum 85.5 87.6 88.9 91.2 92.9 95.9 (98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 127.6 126.9 131.3 55 56 57 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 Cs La H f Ta W Re Os Ir Ba Pt Au Hg Tl Pb Bi Po At Rn Period 6 Cesium Barium Lanthanum Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury Thallium Lead Bismuth Polonium Astatine Radon 132.9 137.3 138.9 178.5 180.9 183.8 186.2 190.2 192.2 195.1 197.0 200.6 204.4 207.2 209.0 (209) (210) (222) 87 89 104 105 106 107 108 109 88 110 111 113 114 115 112 Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Uuu Uut Uuq Uup Uub Period 7 Darmstadtium Unununium Radium Actinium Dubnium Seaborgium Bohrium Hassium Meitnerium Ununbium Ununtrium Ununquadium Ununpentium Rutherfordium (226) (227) (261) (262) (266) (264) (277) (268) (281) (272) (284) (289) (288) (285) The discovery of elements The names and three-letter symbols of elements are temporary. They 113, 114, and 115 has been Values in parentheses are the mass numbers of those reported but not confirmed. are based on the atomic numbers of the elements. Official names and A row of A column of radioactive elements’ most stable or most common isotopes. symbols will be approved by an international committee of scientists. el ements is elements is called called a period. a group or family. 58 59 60 61 62 63 64 65 66 67 68 69 70 71 Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb L u Lanthanides Cerium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Praseodymium 140.1 140.9 144.2 (145) 150.4 152.0 157.2 158.9 162.5 164.9 167.3 168.9 173.0 175.0 90 91 92 93 94 95 96 97 98 99 100 101 102 103 These elements are placed Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr below the table to allow Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Nobelium Lawrencium Mendelevium the table to be narrower. 232.0 231.0 238.0 (237) (244) (243) (247) (247) (251) (252) (257) (258) (259) (262)

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