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Elements Classic · completed 11 Oct 2026 · top 10

Elements, from memory.

74

74/118 elements named

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Matter in your table

Your recalled elements connect into familiar matter.

These are constituent-element matches, not instructions for mixing elements. Ratios, bonds, structure, and reaction conditions decide what matter actually forms.

  1. C₅₅H₇₂MgN₄O₅HCNOMg
    Element map · dotted links show shared membership, not chemical bonds

    You recalled chlorophyll’s entire elemental alphabet.

    Carbon, hydrogen, nitrogen, oxygen, and magnesium are every kind of atom present in chlorophyll a. This is a composition map, not a synthesis recipe.

    PubChem: chlorophyll a

  2. HOH
    WaterH₂O
    HOOH
    Hydrogen peroxideH₂O₂

    Same elements. One extra oxygen. Very different matter.

    Water and hydrogen peroxide contain only hydrogen and oxygen, but their atom counts and O–O bonding differ. Element membership alone does not determine a substance.

    PubChem: water · hydrogen peroxide

  3. C₈H₁₀N₄O₂HCNO
    Element map · dotted links show shared membership, not chemical bonds

    Your table contains caffeine’s four elements.

    Every atom in caffeine is carbon, hydrogen, nitrogen, or oxygen. The subscripts show how many of each occur in one molecule.

    PubChem: caffeine

One element away

Chlorine would complete the element set for NaCl.

Cl

All 74 elements named

Your complete run in recall order.

  1. H1

    Hydrogen

    #1 recalled

  2. Li3

    Lithium

    #2 recalled

  3. Na11

    Sodium

    #3 recalled

  4. K19

    Potassium

    #4 recalled

  5. Rb37

    Rubidium

    #5 recalled

  6. Cs55

    Cesium

    #6 recalled

  7. Fr87

    Francium

    #7 recalled

  8. Be4

    Beryllium

    #8 recalled

  9. Mg12

    Magnesium

    #9 recalled

  10. Ca20

    Calcium

    #10 recalled

  11. Sr38

    Strontium

    #11 recalled

  12. Ba56

    Barium

    #12 recalled

  13. Ra88

    Radium

    #13 recalled

  14. Sc21

    Scandium

    #14 recalled

  15. La57

    Lanthanum

    #15 recalled

  16. Ac89

    Actinium

    #16 recalled

  17. Ti22

    Titanium

    #17 recalled

  18. Zr40

    Zirconium

    #18 recalled

  19. V23

    Vanadium

    #19 recalled

  20. Mo42

    Molybdenum

    #20 recalled

  21. W74

    Tungsten

    #21 recalled

  22. Tc43

    Technetium

    #22 recalled

  23. Re75

    Rhenium

    #23 recalled

  24. Fe26

    Iron

    #24 recalled

  25. Ru44

    Ruthenium

    #25 recalled

  26. Co27

    Cobalt

    #26 recalled

  27. Ir77

    Iridium

    #27 recalled

  28. Ni28

    Nickel

    #28 recalled

  29. Pd46

    Palladium

    #29 recalled

  30. Pt78

    Platinum

    #30 recalled

  31. Cu29

    Copper

    #31 recalled

  32. Ag47

    Silver

    #32 recalled

  33. Au79

    Gold

    #33 recalled

  34. Zn30

    Zinc

    #34 recalled

  35. Cd48

    Cadmium

    #35 recalled

  36. B5

    Boron

    #36 recalled

  37. Al13

    Aluminum

    #37 recalled

  38. Ga31

    Gallium

    #38 recalled

  39. In49

    Indium

    #39 recalled

  40. Tl81

    Thallium

    #40 recalled

  41. C6

    Carbon

    #41 recalled

  42. Si14

    Silicon

    #42 recalled

  43. Ge32

    Germanium

    #43 recalled

  44. N7

    Nitrogen

    #44 recalled

  45. P15

    Phosphorus

    #45 recalled

  46. As33

    Arsenic

    #46 recalled

  47. Sb51

    Antimony

    #47 recalled

  48. Bi83

    Bismuth

    #48 recalled

  49. O8

    Oxygen

    #49 recalled

  50. S16

    Sulfur

    #50 recalled

  51. Se34

    Selenium

    #51 recalled

  52. Po84

    Polonium

    #52 recalled

  53. F9

    Fluorine

    #53 recalled

  54. Br35

    Bromine

    #54 recalled

  55. I53

    Iodine

    #55 recalled

  56. At85

    Astatine

    #56 recalled

  57. He2

    Helium

    #57 recalled

  58. Ne10

    Neon

    #58 recalled

  59. Kr36

    Krypton

    #59 recalled

  60. Xe54

    Xenon

    #60 recalled

  61. Rn86

    Radon

    #61 recalled

  62. Pr59

    Praseodymium

    #62 recalled

  63. Nd60

    Neodymium

    #63 recalled

  64. Pm61

    Promethium

    #64 recalled

  65. Gd64

    Gadolinium

    #65 recalled

  66. Tb65

    Terbium

    #66 recalled

  67. Dy66

    Dysprosium

    #67 recalled

  68. Cr24

    Chromium

    #68 recalled

  69. Er68

    Erbium

    #69 recalled

  70. Th90

    Thorium

    #70 recalled

  71. Ce58

    Cerium

    #71 recalled

  72. Sm62

    Samarium

    #72 recalled

  73. Eu63

    Europium

    #73 recalled

  74. Ho67

    Holmium

    #74 recalled

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