Instrument online · 118 elements indexed

Everything matter is made of,
in one interactive periodic table.

Not a poster: an interactive periodic table you can actually interrogate. Recolour all 118 elements by any property, scrub the temperature and watch them melt, open a real quantum orbital in 3D, and run the calculations your chemistry homework needs.

Open the table Build an atom
Elements
0
Properties
0
Languages
0
Price
Free
LIVE |ψ|² SAMPLE
6 C Carbon
Orbital 2p x
drag to rotate · scroll to zoom
SCROLL

The main instrument

Recolour the table by whatever you are studying

The grid below is live. Switch the colour channel to see a periodic trend appear across the whole table at once — then drag the temperature to watch the elements melt and boil in order.

293 K
Full table, full controls

All 118 elements by atomic number
  1. 1 H Hydrogen
  2. 2 He Helium
  3. 3 Li Lithium
  4. 4 Be Beryllium
  5. 5 B Boron
  6. 6 C Carbon
  7. 7 N Nitrogen
  8. 8 O Oxygen
  9. 9 F Fluorine
  10. 10 Ne Neon
  11. 11 Na Sodium
  12. 12 Mg Magnesium
  13. 13 Al Aluminum
  14. 14 Si Silicon
  15. 15 P Phosphorus
  16. 16 S Sulfur
  17. 17 Cl Chlorine
  18. 18 Ar Argon
  19. 19 K Potassium
  20. 20 Ca Calcium
  21. 21 Sc Scandium
  22. 22 Ti Titanium
  23. 23 V Vanadium
  24. 24 Cr Chromium
  25. 25 Mn Manganese
  26. 26 Fe Iron
  27. 27 Co Cobalt
  28. 28 Ni Nickel
  29. 29 Cu Copper
  30. 30 Zn Zinc
  31. 31 Ga Gallium
  32. 32 Ge Germanium
  33. 33 As Arsenic
  34. 34 Se Selenium
  35. 35 Br Bromine
  36. 36 Kr Krypton
  37. 37 Rb Rubidium
  38. 38 Sr Strontium
  39. 39 Y Yttrium
  40. 40 Zr Zirconium
  41. 41 Nb Niobium
  42. 42 Mo Molybdenum
  43. 43 Tc Technetium
  44. 44 Ru Ruthenium
  45. 45 Rh Rhodium
  46. 46 Pd Palladium
  47. 47 Ag Silver
  48. 48 Cd Cadmium
  49. 49 In Indium
  50. 50 Sn Tin
  51. 51 Sb Antimony
  52. 52 Te Tellurium
  53. 53 I Iodine
  54. 54 Xe Xenon
  55. 55 Cs Cesium
  56. 56 Ba Barium
  57. 57 La Lanthanum
  58. 58 Ce Cerium
  59. 59 Pr Praseodymium
  60. 60 Nd Neodymium
  61. 61 Pm Promethium
  62. 62 Sm Samarium
  63. 63 Eu Europium
  64. 64 Gd Gadolinium
  65. 65 Tb Terbium
  66. 66 Dy Dysprosium
  67. 67 Ho Holmium
  68. 68 Er Erbium
  69. 69 Tm Thulium
  70. 70 Yb Ytterbium
  71. 71 Lu Lutetium
  72. 72 Hf Hafnium
  73. 73 Ta Tantalum
  74. 74 W Tungsten
  75. 75 Re Rhenium
  76. 76 Os Osmium
  77. 77 Ir Iridium
  78. 78 Pt Platinum
  79. 79 Au Gold
  80. 80 Hg Mercury
  81. 81 Tl Thallium
  82. 82 Pb Lead
  83. 83 Bi Bismuth
  84. 84 Po Polonium
  85. 85 At Astatine
  86. 86 Rn Radon
  87. 87 Fr Francium
  88. 88 Ra Radium
  89. 89 Ac Actinium
  90. 90 Th Thorium
  91. 91 Pa Protactinium
  92. 92 U Uranium
  93. 93 Np Neptunium
  94. 94 Pu Plutonium
  95. 95 Am Americium
  96. 96 Cm Curium
  97. 97 Bk Berkelium
  98. 98 Cf Californium
  99. 99 Es Einsteinium
  100. 100 Fm Fermium
  101. 101 Md Mendelevium
  102. 102 No Nobelium
  103. 103 Lr Lawrencium
  104. 104 Rf Rutherfordium
  105. 105 Db Dubnium
  106. 106 Sg Seaborgium
  107. 107 Bh Bohrium
  108. 108 Hs Hassium
  109. 109 Mt Meitnerium
  110. 110 Ds Darmstadtium
  111. 111 Rg Roentgenium
  112. 112 Cn Copernicium
  113. 113 Nh Nihonium
  114. 114 Fl Flerovium
  115. 115 Mc Moscovium
  116. 116 Lv Livermorium
  117. 117 Ts Tennessine
  118. 118 Og Oganesson

Why the table has a shape

The periodic law, plotted

Mendeleev arranged the elements by weight and noticed the properties repeated. Plot any property against atomic number and you can see it: the same pattern, once per row, forever.

Peaks: noble gasesTroughs: alkali metals

The bench

Free instruments, no sign-up

Everything runs in your browser. Nothing is uploaded anywhere.

3D Atom Lab

Add protons, neutrons and electrons one at a time and watch an element assemble itself. The nucleus reacts, the shells fill in order, and a stability read-out tells you whether what you built would actually survive.

Enter the lab

Molar mass calculator

Type any formula — Ca(OH)2, CuSO4·5H2O — and get the molar mass with a per-element breakdown.

Open

Equation balancer

Enter an unbalanced reaction and get the smallest whole-number coefficients, solved by linear algebra rather than trial and error.

Open

Electron configuration

Build any element's configuration by hand and get instant feedback, with the Aufbau diagonal drawn out step by step.

Open

Side-by-side compare

Put up to four elements next to each other and see every measured property lined up, with percentile bars against all 118.

Open

Unit converter

Convert temperature, pressure and energy units, moles to particles, and atomic-scale lengths, in both directions.

Open

Which element am I?

Type the clues from a riddle, such as protons, group, period or state, and get the element with the reasoning shown.

Open

Element decoder

One element is hidden. Two clues are free, the rest cost points, and every wrong guess tells you which way to move. Deduction, not multiple choice.

Play

Daily element puzzle

One hidden element a day, the same for everyone. Solve it, then share your result without giving the answer away.

Play

Ten families

Elements that behave alike, sit together

Chemical family is the single best predictor of how an element behaves. Each one has its own guide.

06 Alkali metals Li Na K Rb Cs Fr 06 Alkaline earth metals Be Mg Ca Sr Ba Ra 38 Transition metals Sc Ti V Cr Mn Fe Co 12 Post-transition metals Al Ga In Sn Tl Pb Bi 07 Metalloids B Si Ge As Sb Te At 07 Nonmetals H C N O P S Se 05 Halogens F Cl Br I Ts 07 Noble gases He Ne Ar Kr Xe Rn Og 15 Lanthanides La Ce Pr Nd Pm Sm Eu 15 Actinides Ac Th Pa U Np Pu Am

From the archive

Every gram of your body contains roughly 6×10²² hydrogen atoms, most of them older than the Sun.
H Hydrogen
Element 1 · Nonmetal

Start with the one you are stuck on.

Hit CtrlK anywhere on the site and type a name, a symbol, an atomic number, or something vague like “radioactive”.

Browse the table