The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends.
The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. The columns, called groups, contain elements with similar chemical behaviors. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases.
The different elements are organized and displayed. Devised by Russian chemist Dmitri Mendeleev (1834–1907) in 1869, the table groups elements that, although unique, share certain chemical properties with other elements.
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This is organized so scientists can quickly discern the properties of individual elements such as their mass, electron number, electron configuration, and their unique chemical properties. Metals reside on the left side of the table, while non-metals reside on the right. Organizing the elements to help further our understanding was first provided by Dmitri Mendeleev.
This periodic table chart lists elements by name in alphabetical order.
CElement Name | Symbol | Atomic Number | Electronegativity (χ) |
---|---|---|---|
Actinium | Ac | 89 | 1.1 |
Aluminum | Al | 13 | 1.61 |
Americium | Am | 95 | 1.3 |
Antimony | Sb | 51 | 2.05 |
Argon | Ar | 18 | |
Arsenic | As | 33 | 2.18 |
Astatine | At | 85 | 2.2 |
Barium | Ba | 56 | 0.89 |
Berkelium | Bk | 97 | 1.3 |
Beryllium | Be | 4 | 1.57 |
Bismuth | Bi | 83 | 2.02 |
Bohrium | Bh | 107 | |
Boron | B | 5 | 2.04 |
Bromine | Br | 35 | 2.96 |
Cadmium | Cd | 48 | 1.69 |
Calcium | Ca | 20 | 1 |
Californium | Cf | 98 | 1.3 |
Carbon | C | 6 | 2.55 |
Cerium | Ce | 58 | 1.12 |
Cesium | Cs | 55 | 0.79 |
Chlorine | Cl | 17 | 3.16 |
Chromium | Cr | 24 | 1.66 |
Cobalt | Co | 27 | 1.88 |
Copper | Cu | 29 | 1.9 |
Curium | Cm | 96 | 1.3 |
Darmstadtium | Ds | 110 | |
Dubnium | Db | 105 | |
Dysprosium | Dy | 66 | 1.22 |
Einsteinium | Es | 99 | 1.3 |
Erbium | Er | 68 | 1.24 |
Europium | Eu | 63 | |
Fermium | Fm | 100 | 1.3 |
Fluorine | F | 9 | 3.98 |
Francium | Fr | 87 | 0.7 |
Gadolinium | Gd | 64 | 1.2 |
Gallium | Ga | 31 | 1.81 |
Germanium | Ge | 32 | 2.01 |
Gold | Au | 79 | 2.54 |
Hafnium | Hf | 72 | 1.3 |
Hassium | Hs | 108 | |
Helium | He | 2 | |
Holmium | Ho | 67 | 1.23 |
Hydrogen | H | 1 | 2.2 |
Indium | In | 49 | 1.78 |
Iodine | I | 53 | 2.66 |
Iridium | Ir | 77 | 2.2 |
Iron | Fe | 26 | 1.83 |
Krypton | Kr | 36 | 3 |
Lanthanum | La | 57 | 1.1 |
Lawrencium | Lr | 103 | |
Lead | Pb | 82 | 2.33 |
Lithium | Li | 3 | 0.98 |
Lutetium | Lu | 71 | 1.27 |
Magnesium | Mg | 12 | 1.31 |
Manganese | Mn | 25 | 1.55 |
Meitnerium | Mt | 109 | |
Mendelevium | Md | 101 | 1.3 |
Mercury | Hg | 80 | 2 |
Molybdenum | Mo | 42 | 2.16 |
Neodymium | Nd | 60 | 1.14 |
Neon | Ne | 10 | |
Neptunium | Np | 93 | 1.36 |
Nickel | Ni | 28 | 1.91 |
Niobium | Nb | 41 | 1.6 |
Nitrogen | N | 7 | 3.04 |
Nobelium | No | 102 | 1.3 |
Oganesson | Uuo | 118 | |
Osmium | Os | 76 | 2.2 |
Oxygen | O | 8 | 3.44 |
Palladium | Pd | 46 | 2.2 |
Phosphorus | P | 15 | 2.19 |
Platinum | Pt | 78 | 2.28 |
Plutonium | Pu | 94 | 1.28 |
Polonium | Po | 84 | 2 |
Potassium | K | 19 | 0.82 |
Praseodymium | Pr | 59 | 1.13 |
Promethium | Pm | 61 | |
Protactinium | Pa | 91 | 1.5 |
Radium | Ra | 88 | 0.9 |
Radon | Rn | 86 | |
Rhenium | Re | 75 | 1.9 |
Rhodium | Rh | 45 | 2.28 |
Roentgenium | Rg | 111 | |
Rubidium | Rb | 37 | 0.82 |
Ruthenium | Ru | 44 | 2.2 |
Rutherfordium | Rf | 104 | |
Samarium | Sm | 62 | 1.17 |
Scandium | Sc | 21 | 1.36 |
Seaborgium | Sg | 106 | |
Selenium | Se | 34 | 2.55 |
Silicon | Si | 14 | 1.9 |
Silver | Ag | 47 | 1.93 |
Sodium | Na | 11 | 0.93 |
Strontium | Sr | 38 | 0.95 |
Sulfur | S | 16 | 2.58 |
Tantalum | Ta | 73 | 1.5 |
Technetium | Tc | 43 | 1.9 |
Tellurium | Te | 52 | 2.1 |
Terbium | Tb | 65 | |
Thallium | Tl | 81 | 1.62 |
Thorium | Th | 90 | 1.3 |
Thulium | Tm | 69 | 1.25 |
Tin | Sn | 50 | 1.96 |
Titanium | Ti | 22 | 1.54 |
Tungsten | W | 74 | 2.36 |
Ununbium | Uub | 112 | |
Ununhexium | Uuh | 116 | |
Ununpentium | Uup | 115 | |
Ununquadium | Uuq | 114 | |
Ununseptium | Uus | 117 | |
Ununtrium | Uut | 113 | |
Uranium | U | 92 | 1.38 |
Vanadium | V | 23 | 1.63 |
Xenon | Xe | 54 | 2.6 |
Ytterbium | Yb | 70 | |
Yttrium | Y | 39 | 1.22 |
Zinc | Zn | 30 | 1.65 |
Zirconium | Zr | 40 | 1.33 |
So we can say that There are several different types of periodic tables. For example, there are short-form periodic tables and long-form periodic tables, as shown below. Strictly speaking, long-form periodic tables are more “correct” (and I would argue that they allow greater conceptual understanding of electron shells), but short-form periodic tables are easier to print. Feel free to pay someone to do your chemistry homework if you need expert help with your assignments. We will now show you some of our favorite alternative arrangements. Shapes of the periodic table:
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