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[Home](https://www.sigmaaldrich.com/US/en)[Organic Reaction Toolbox](https://www.sigmaaldrich.com/US/en/applications/chemistry-and-synthesis/synthetic-methods/organic-reaction-toolbox)Periodic Table of the Elements
# Periodic Table of the Elements
The periodic table (also known as the periodic table of elements) 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 of the elements with names, atomic number, symbol and mass is color-coded for easier reference by students and researchers. For quick reference, go to the [periodic table chart with names](https://www.sigmaaldrich.com#periodic-table-chart-with-names) listed alphabetical order.
[](https://www.sigmaaldrich.com/content/dam/cms-commons/sigmaaldrich/marketing/global/images/technical-documents/articles/chemistry-and-synthesis/organic-reaction-toolbox/periodic-table/periodic-table-updated-july-2021-rgb-ms.svg)
Click the image to download and view the periodic table of the elements.
### Periodic Table Downloads
[Downloadable PDF](https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/181/206/periodic-table-of-the-elements-printable-ms.pdf)
[Printable Image](https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/images/technical-documents/articles/chemistry-and-synthesis/organic-reaction-toolbox/periodic-table/periodic-table-updated-feb-2021-cmyk-ms.png)[SVG (in-browser)](https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/images/technical-documents/articles/chemistry-and-synthesis/organic-reaction-toolbox/periodic-table/periodic-table-updated-july-2021-rgb-ms.svg)
## [](https://www.sigmaaldrich.com)Periodic Table with Element Names and Electronegativity
[](https://www.sigmaaldrich.com)This periodic table chart lists elements by name in alphabetical order including the element symbol, atomic number, and Pauling electronegativity value for quick and simple reference.
| | | | |
|---------------|--------|---------------|-----------------------|
| Element 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 |
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