---
title: "Periodic table — all 118 elements"
description: "All 118 elements with atomic number, mass, electron configuration, melting and boiling points, density and uses. The most stable reference data there is."
url: https://atoneplace.net/element/
site: "At One Place"
---

# The periodic table

Every element, with its configuration and properties. This is the most stable dataset in existence — atomic numbers are definitional, and the physical constants move only with better measurement.

*[Periodic table grid on the page — all 118 elements, linked.]*

## All 118 elements

*Square brackets mark a mass number rather than a standard atomic weight — those elements have no stable isotope.*

| Z | Symbol | Element | Mass | Category | Melting point |
| --- | --- | --- | --- | --- | --- |
| 1 | H | Hydrogen | 1.008 | Nonmetal | -259 °C |
| 2 | He | Helium | 4.0026 | Noble gas | -272 °C |
| 3 | Li | Lithium | 6.94 | Alkali metal | 181 °C |
| 4 | Be | Beryllium | 9.0122 | Alkaline earth metal | 1287 °C |
| 5 | B | Boron | 10.81 | Metalloid | 2075 °C |
| 6 | C | Carbon | 12.011 | Nonmetal | 3550 °C |
| 7 | N | Nitrogen | 14.007 | Nonmetal | -210 °C |
| 8 | O | Oxygen | 15.999 | Nonmetal | -219 °C |
| 9 | F | Fluorine | 18.998 | Halogen | -220 °C |
| 10 | Ne | Neon | 20.18 | Noble gas | -249 °C |
| 11 | Na | Sodium | 22.99 | Alkali metal | 98 °C |
| 12 | Mg | Magnesium | 24.305 | Alkaline earth metal | 650 °C |
| 13 | Al | Aluminum | 26.982 | Post-transition metal | 660 °C |
| 14 | Si | Silicon | 28.085 | Metalloid | 1414 °C |
| 15 | P | Phosphorus | 30.974 | Nonmetal | 44 °C |
| 16 | S | Sulfur | 32.06 | Nonmetal | 115 °C |
| 17 | Cl | Chlorine | 35.45 | Halogen | -101 °C |
| 18 | Ar | Argon | 39.95 | Noble gas | -189 °C |
| 19 | K | Potassium | 39.098 | Alkali metal | 63 °C |
| 20 | Ca | Calcium | 40.078 | Alkaline earth metal | 842 °C |
| 21 | Sc | Scandium | 44.956 | Transition metal | 1541 °C |
| 22 | Ti | Titanium | 47.867 | Transition metal | 1668 °C |
| 23 | V | Vanadium | 50.942 | Transition metal | 1910 °C |
| 24 | Cr | Chromium | 51.996 | Transition metal | 1907 °C |
| 25 | Mn | Manganese | 54.938 | Transition metal | 1246 °C |
| 26 | Fe | Iron | 55.845 | Transition metal | 1538 °C |
| 27 | Co | Cobalt | 58.933 | Transition metal | 1495 °C |
| 28 | Ni | Nickel | 58.693 | Transition metal | 1455 °C |
| 29 | Cu | Copper | 63.546 | Transition metal | 1085 °C |
| 30 | Zn | Zinc | 65.38 | Transition metal | 420 °C |
| 31 | Ga | Gallium | 69.723 | Post-transition metal | 30 °C |
| 32 | Ge | Germanium | 72.63 | Metalloid | 938 °C |
| 33 | As | Arsenic | 74.922 | Metalloid | 817 °C |
| 34 | Se | Selenium | 78.971 | Nonmetal | 221 °C |
| 35 | Br | Bromine | 79.904 | Halogen | -7 °C |
| 36 | Kr | Krypton | 83.798 | Noble gas | -157 °C |
| 37 | Rb | Rubidium | 85.468 | Alkali metal | 39 °C |
| 38 | Sr | Strontium | 87.62 | Alkaline earth metal | 777 °C |
| 39 | Y | Yttrium | 88.906 | Transition metal | 1522 °C |
| 40 | Zr | Zirconium | 91.222 | Transition metal | 1855 °C |
| 41 | Nb | Niobium | 92.906 | Transition metal | 2477 °C |
| 42 | Mo | Molybdenum | 95.95 | Transition metal | 2623 °C |
| 43 | Tc | Technetium | [97] | Transition metal | 2157 °C |
| 44 | Ru | Ruthenium | 101.07 | Transition metal | 2334 °C |
| 45 | Rh | Rhodium | 102.91 | Transition metal | 1964 °C |
| 46 | Pd | Palladium | 106.42 | Transition metal | 1555 °C |
| 47 | Ag | Silver | 107.87 | Transition metal | 962 °C |
| 48 | Cd | Cadmium | 112.41 | Transition metal | 321 °C |
| 49 | In | Indium | 114.82 | Post-transition metal | 157 °C |
| 50 | Sn | Tin | 118.71 | Post-transition metal | 232 °C |
| 51 | Sb | Antimony | 121.76 | Metalloid | 631 °C |
| 52 | Te | Tellurium | 127.6 | Metalloid | 450 °C |
| 53 | I | Iodine | 126.9 | Halogen | 114 °C |
| 54 | Xe | Xenon | 131.29 | Noble gas | -112 °C |
| 55 | Cs | Cesium | 132.91 | Alkali metal | 28 °C |
| 56 | Ba | Barium | 137.33 | Alkaline earth metal | 727 °C |
| 57 | La | Lanthanum | 138.91 | Lanthanide | 918 °C |
| 58 | Ce | Cerium | 140.12 | Lanthanide | 798 °C |
| 59 | Pr | Praseodymium | 140.91 | Lanthanide | 931 °C |
| 60 | Nd | Neodymium | 144.24 | Lanthanide | 1021 °C |
| 61 | Pm | Promethium | [145] | Lanthanide | 1042 °C |
| 62 | Sm | Samarium | 150.36 | Lanthanide | 1074 °C |
| 63 | Eu | Europium | 151.96 | Lanthanide | 822 °C |
| 64 | Gd | Gadolinium | 157.25 | Lanthanide | 1313 °C |
| 65 | Tb | Terbium | 158.93 | Lanthanide | 1356 °C |
| 66 | Dy | Dysprosium | 162.5 | Lanthanide | 1412 °C |
| 67 | Ho | Holmium | 164.93 | Lanthanide | 1474 °C |
| 68 | Er | Erbium | 167.26 | Lanthanide | 1529 °C |
| 69 | Tm | Thulium | 168.93 | Lanthanide | 1545 °C |
| 70 | Yb | Ytterbium | 173.05 | Lanthanide | 819 °C |
| 71 | Lu | Lutetium | 174.97 | Lanthanide | 1663 °C |
| 72 | Hf | Hafnium | 178.49 | Transition metal | 2233 °C |
| 73 | Ta | Tantalum | 180.95 | Transition metal | 3017 °C |
| 74 | W | Tungsten | 183.84 | Transition metal | 3422 °C |
| 75 | Re | Rhenium | 186.21 | Transition metal | 3186 °C |
| 76 | Os | Osmium | 190.23 | Transition metal | 3033 °C |
| 77 | Ir | Iridium | 192.22 | Transition metal | 2446 °C |
| 78 | Pt | Platinum | 195.08 | Transition metal | 1768 °C |
| 79 | Au | Gold | 196.97 | Transition metal | 1064 °C |
| 80 | Hg | Mercury | 200.59 | Transition metal | -39 °C |
| 81 | Tl | Thallium | 204.38 | Post-transition metal | 304 °C |
| 82 | Pb | Lead | 207.2 | Post-transition metal | 327 °C |
| 83 | Bi | Bismuth | 208.98 | Post-transition metal | 271 °C |
| 84 | Po | Polonium | [209] | Metalloid | 254 °C |
| 85 | At | Astatine | [210] | Halogen | — |
| 86 | Rn | Radon | [222] | Noble gas | -71 °C |
| 87 | Fr | Francium | [223] | Alkali metal | — |
| 88 | Ra | Radium | [226] | Alkaline earth metal | 700 °C |
| 89 | Ac | Actinium | [227] | Actinide | 1051 °C |
| 90 | Th | Thorium | 232.04 | Actinide | 1750 °C |
| 91 | Pa | Protactinium | 231.04 | Actinide | 1572 °C |
| 92 | U | Uranium | 238.03 | Actinide | 1135 °C |
| 93 | Np | Neptunium | [237] | Actinide | 644 °C |
| 94 | Pu | Plutonium | [244] | Actinide | 640 °C |
| 95 | Am | Americium | [243] | Actinide | 1176 °C |
| 96 | Cm | Curium | [247] | Actinide | 1345 °C |
| 97 | Bk | Berkelium | [247] | Actinide | 1050 °C |
| 98 | Cf | Californium | [251] | Actinide | 900 °C |
| 99 | Es | Einsteinium | [252] | Actinide | 860 °C |
| 100 | Fm | Fermium | [257] | Actinide | — |
| 101 | Md | Mendelevium | [258] | Actinide | — |
| 102 | No | Nobelium | [259] | Actinide | — |
| 103 | Lr | Lawrencium | [266] | Actinide | — |
| 104 | Rf | Rutherfordium | [267] | Transition metal | — |
| 105 | Db | Dubnium | [268] | Transition metal | — |
| 106 | Sg | Seaborgium | [269] | Transition metal | — |
| 107 | Bh | Bohrium | [270] | Transition metal | — |
| 108 | Hs | Hassium | [269] | Transition metal | — |
| 109 | Mt | Meitnerium | [278] | Transition metal | — |
| 110 | Ds | Darmstadtium | [281] | Transition metal | — |
| 111 | Rg | Roentgenium | [282] | Transition metal | — |
| 112 | Cn | Copernicium | [285] | Transition metal | — |
| 113 | Nh | Nihonium | [286] | Post-transition metal | — |
| 114 | Fl | Flerovium | [289] | Post-transition metal | — |
| 115 | Mc | Moscovium | [290] | Post-transition metal | — |
| 116 | Lv | Livermorium | [293] | Post-transition metal | — |
| 117 | Ts | Tennessine | [294] | Halogen | — |
| 118 | Og | Oganesson | [294] | Noble gas | — |

## Every element

- [Hydrogen (H)](https://atoneplace.net/element/hydrogen/) — Element 1
- [Helium (He)](https://atoneplace.net/element/helium/) — Element 2
- [Lithium (Li)](https://atoneplace.net/element/lithium/) — Element 3
- [Beryllium (Be)](https://atoneplace.net/element/beryllium/) — Element 4
- [Boron (B)](https://atoneplace.net/element/boron/) — Element 5
- [Carbon (C)](https://atoneplace.net/element/carbon/) — Element 6
- [Nitrogen (N)](https://atoneplace.net/element/nitrogen/) — Element 7
- [Oxygen (O)](https://atoneplace.net/element/oxygen/) — Element 8
- [Fluorine (F)](https://atoneplace.net/element/fluorine/) — Element 9
- [Neon (Ne)](https://atoneplace.net/element/neon/) — Element 10
- [Sodium (Na)](https://atoneplace.net/element/sodium/) — Element 11
- [Magnesium (Mg)](https://atoneplace.net/element/magnesium/) — Element 12
- [Aluminum (Al)](https://atoneplace.net/element/aluminum/) — Element 13
- [Silicon (Si)](https://atoneplace.net/element/silicon/) — Element 14
- [Phosphorus (P)](https://atoneplace.net/element/phosphorus/) — Element 15
- [Sulfur (S)](https://atoneplace.net/element/sulfur/) — Element 16
- [Chlorine (Cl)](https://atoneplace.net/element/chlorine/) — Element 17
- [Argon (Ar)](https://atoneplace.net/element/argon/) — Element 18
- [Potassium (K)](https://atoneplace.net/element/potassium/) — Element 19
- [Calcium (Ca)](https://atoneplace.net/element/calcium/) — Element 20
- [Scandium (Sc)](https://atoneplace.net/element/scandium/) — Element 21
- [Titanium (Ti)](https://atoneplace.net/element/titanium/) — Element 22
- [Vanadium (V)](https://atoneplace.net/element/vanadium/) — Element 23
- [Chromium (Cr)](https://atoneplace.net/element/chromium/) — Element 24
- [Manganese (Mn)](https://atoneplace.net/element/manganese/) — Element 25
- [Iron (Fe)](https://atoneplace.net/element/iron/) — Element 26
- [Cobalt (Co)](https://atoneplace.net/element/cobalt/) — Element 27
- [Nickel (Ni)](https://atoneplace.net/element/nickel/) — Element 28
- [Copper (Cu)](https://atoneplace.net/element/copper/) — Element 29
- [Zinc (Zn)](https://atoneplace.net/element/zinc/) — Element 30
- [Gallium (Ga)](https://atoneplace.net/element/gallium/) — Element 31
- [Germanium (Ge)](https://atoneplace.net/element/germanium/) — Element 32
- [Arsenic (As)](https://atoneplace.net/element/arsenic/) — Element 33
- [Selenium (Se)](https://atoneplace.net/element/selenium/) — Element 34
- [Bromine (Br)](https://atoneplace.net/element/bromine/) — Element 35
- [Krypton (Kr)](https://atoneplace.net/element/krypton/) — Element 36
- [Rubidium (Rb)](https://atoneplace.net/element/rubidium/) — Element 37
- [Strontium (Sr)](https://atoneplace.net/element/strontium/) — Element 38
- [Yttrium (Y)](https://atoneplace.net/element/yttrium/) — Element 39
- [Zirconium (Zr)](https://atoneplace.net/element/zirconium/) — Element 40
- [Niobium (Nb)](https://atoneplace.net/element/niobium/) — Element 41
- [Molybdenum (Mo)](https://atoneplace.net/element/molybdenum/) — Element 42
- [Technetium (Tc)](https://atoneplace.net/element/technetium/) — Element 43
- [Ruthenium (Ru)](https://atoneplace.net/element/ruthenium/) — Element 44
- [Rhodium (Rh)](https://atoneplace.net/element/rhodium/) — Element 45
- [Palladium (Pd)](https://atoneplace.net/element/palladium/) — Element 46
- [Silver (Ag)](https://atoneplace.net/element/silver/) — Element 47
- [Cadmium (Cd)](https://atoneplace.net/element/cadmium/) — Element 48
- [Indium (In)](https://atoneplace.net/element/indium/) — Element 49
- [Tin (Sn)](https://atoneplace.net/element/tin/) — Element 50
- [Antimony (Sb)](https://atoneplace.net/element/antimony/) — Element 51
- [Tellurium (Te)](https://atoneplace.net/element/tellurium/) — Element 52
- [Iodine (I)](https://atoneplace.net/element/iodine/) — Element 53
- [Xenon (Xe)](https://atoneplace.net/element/xenon/) — Element 54
- [Cesium (Cs)](https://atoneplace.net/element/cesium/) — Element 55
- [Barium (Ba)](https://atoneplace.net/element/barium/) — Element 56
- [Lanthanum (La)](https://atoneplace.net/element/lanthanum/) — Element 57
- [Cerium (Ce)](https://atoneplace.net/element/cerium/) — Element 58
- [Praseodymium (Pr)](https://atoneplace.net/element/praseodymium/) — Element 59
- [Neodymium (Nd)](https://atoneplace.net/element/neodymium/) — Element 60
- [Promethium (Pm)](https://atoneplace.net/element/promethium/) — Element 61
- [Samarium (Sm)](https://atoneplace.net/element/samarium/) — Element 62
- [Europium (Eu)](https://atoneplace.net/element/europium/) — Element 63
- [Gadolinium (Gd)](https://atoneplace.net/element/gadolinium/) — Element 64
- [Terbium (Tb)](https://atoneplace.net/element/terbium/) — Element 65
- [Dysprosium (Dy)](https://atoneplace.net/element/dysprosium/) — Element 66
- [Holmium (Ho)](https://atoneplace.net/element/holmium/) — Element 67
- [Erbium (Er)](https://atoneplace.net/element/erbium/) — Element 68
- [Thulium (Tm)](https://atoneplace.net/element/thulium/) — Element 69
- [Ytterbium (Yb)](https://atoneplace.net/element/ytterbium/) — Element 70
- [Lutetium (Lu)](https://atoneplace.net/element/lutetium/) — Element 71
- [Hafnium (Hf)](https://atoneplace.net/element/hafnium/) — Element 72
- [Tantalum (Ta)](https://atoneplace.net/element/tantalum/) — Element 73
- [Tungsten (W)](https://atoneplace.net/element/tungsten/) — Element 74
- [Rhenium (Re)](https://atoneplace.net/element/rhenium/) — Element 75
- [Osmium (Os)](https://atoneplace.net/element/osmium/) — Element 76
- [Iridium (Ir)](https://atoneplace.net/element/iridium/) — Element 77
- [Platinum (Pt)](https://atoneplace.net/element/platinum/) — Element 78
- [Gold (Au)](https://atoneplace.net/element/gold/) — Element 79
- [Mercury (Hg)](https://atoneplace.net/element/mercury/) — Element 80
- [Thallium (Tl)](https://atoneplace.net/element/thallium/) — Element 81
- [Lead (Pb)](https://atoneplace.net/element/lead/) — Element 82
- [Bismuth (Bi)](https://atoneplace.net/element/bismuth/) — Element 83
- [Polonium (Po)](https://atoneplace.net/element/polonium/) — Element 84
- [Astatine (At)](https://atoneplace.net/element/astatine/) — Element 85
- [Radon (Rn)](https://atoneplace.net/element/radon/) — Element 86
- [Francium (Fr)](https://atoneplace.net/element/francium/) — Element 87
- [Radium (Ra)](https://atoneplace.net/element/radium/) — Element 88
- [Actinium (Ac)](https://atoneplace.net/element/actinium/) — Element 89
- [Thorium (Th)](https://atoneplace.net/element/thorium/) — Element 90
- [Protactinium (Pa)](https://atoneplace.net/element/protactinium/) — Element 91
- [Uranium (U)](https://atoneplace.net/element/uranium/) — Element 92
- [Neptunium (Np)](https://atoneplace.net/element/neptunium/) — Element 93
- [Plutonium (Pu)](https://atoneplace.net/element/plutonium/) — Element 94
- [Americium (Am)](https://atoneplace.net/element/americium/) — Element 95
- [Curium (Cm)](https://atoneplace.net/element/curium/) — Element 96
- [Berkelium (Bk)](https://atoneplace.net/element/berkelium/) — Element 97
- [Californium (Cf)](https://atoneplace.net/element/californium/) — Element 98
- [Einsteinium (Es)](https://atoneplace.net/element/einsteinium/) — Element 99
- [Fermium (Fm)](https://atoneplace.net/element/fermium/) — Element 100
- [Mendelevium (Md)](https://atoneplace.net/element/mendelevium/) — Element 101
- [Nobelium (No)](https://atoneplace.net/element/nobelium/) — Element 102
- [Lawrencium (Lr)](https://atoneplace.net/element/lawrencium/) — Element 103
- [Rutherfordium (Rf)](https://atoneplace.net/element/rutherfordium/) — Element 104
- [Dubnium (Db)](https://atoneplace.net/element/dubnium/) — Element 105
- [Seaborgium (Sg)](https://atoneplace.net/element/seaborgium/) — Element 106
- [Bohrium (Bh)](https://atoneplace.net/element/bohrium/) — Element 107
- [Hassium (Hs)](https://atoneplace.net/element/hassium/) — Element 108
- [Meitnerium (Mt)](https://atoneplace.net/element/meitnerium/) — Element 109
- [Darmstadtium (Ds)](https://atoneplace.net/element/darmstadtium/) — Element 110
- [Roentgenium (Rg)](https://atoneplace.net/element/roentgenium/) — Element 111
- [Copernicium (Cn)](https://atoneplace.net/element/copernicium/) — Element 112
- [Nihonium (Nh)](https://atoneplace.net/element/nihonium/) — Element 113
- [Flerovium (Fl)](https://atoneplace.net/element/flerovium/) — Element 114
- [Moscovium (Mc)](https://atoneplace.net/element/moscovium/) — Element 115
- [Livermorium (Lv)](https://atoneplace.net/element/livermorium/) — Element 116
- [Tennessine (Ts)](https://atoneplace.net/element/tennessine/) — Element 117
- [Oganesson (Og)](https://atoneplace.net/element/oganesson/) — Element 118

## Common questions

### Why do some elements have their mass in square brackets?

Because they have no stable isotope, so there is no natural abundance to average. The bracketed figure is the mass number of the longest-lived confirmed isotope instead.

### Why are some properties missing for the heaviest elements?

Because no bulk sample has ever existed. For elements above about 99, only a handful of atoms have been produced, so published melting points and densities are calculations rather than measurements. They are omitted rather than shown as observed.

### Why is chromium 4s¹ 3d⁵ rather than 4s² 3d⁴?

A half-filled d subshell is more stable than the alternative, so one electron moves from 4s to 3d. Copper does the same to complete its d shell, and there are nineteen such anomalies in the table.