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Elements Classic · completed 29 Oct 2026 · top 10

Elements, from memory.

33

33/118 elements named

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9:28.010

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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. Na+Cl−
    Ionic pairNaCl

    You named both sides of table salt.

    Sodium chloride is an ionic solid with sodium and chloride ions in a 1:1 ratio. The dotted link is ionic attraction, not a covalent bond.

    PubChem: sodium chloride

  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

All 33 elements named

Your complete run in recall order.

  1. He2

    Helium

    #1 recalled

  2. H1

    Hydrogen

    #2 recalled

  3. C6

    Carbon

    #3 recalled

  4. O8

    Oxygen

    #4 recalled

  5. Fe26

    Iron

    #5 recalled

  6. W74

    Tungsten

    #6 recalled

  7. Ra88

    Radium

    #7 recalled

  8. Cf98

    Californium

    #8 recalled

  9. Es99

    Einsteinium

    #9 recalled

  10. Am95

    Americium

    #10 recalled

  11. F9

    Fluorine

    #11 recalled

  12. S16

    Sulfur

    #12 recalled

  13. P15

    Phosphorus

    #13 recalled

  14. Al13

    Aluminum

    #14 recalled

  15. Be4

    Beryllium

    #15 recalled

  16. U92

    Uranium

    #16 recalled

  17. Pu94

    Plutonium

    #17 recalled

  18. Au79

    Gold

    #18 recalled

  19. Ag47

    Silver

    #19 recalled

  20. Rn86

    Radon

    #20 recalled

  21. Ca20

    Calcium

    #21 recalled

  22. Mg12

    Magnesium

    #22 recalled

  23. N7

    Nitrogen

    #23 recalled

  24. Na11

    Sodium

    #24 recalled

  25. Cl17

    Chlorine

    #25 recalled

  26. Ba56

    Barium

    #26 recalled

  27. B5

    Boron

    #27 recalled

  28. Ti22

    Titanium

    #28 recalled

  29. Pt78

    Platinum

    #29 recalled

  30. Si14

    Silicon

    #30 recalled

  31. Ga31

    Gallium

    #31 recalled

  32. Hg80

    Mercury

    #32 recalled

  33. Cu29

    Copper

    #33 recalled

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