Your cardYour collection

Elements Classic · completed 8 Sept 2026 · top 10

Elements, from memory.

73

73/118 elements named

Element collector

Elapsed

46:59.905

Anonymous player

Pace in the field

Faster than 0%

Among 2 players who reached 73

Rank 2 / 2

FastestThe field

Your run, in motion.

Replay position · 73/73 · 46:59 / 46:59 · 85 missed

Loading theatre…

46:59

46:59

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. 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

  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. CaCO₃COCa
    Element map · dotted links show shared membership, not chemical bonds

    Calcium, carbon, and oxygen put limestone on your map.

    Calcium carbonate is the principal chemical constituent of limestone and has the formula CaCO₃.

    PubChem: calcium carbonate

One element away

Magnesium would complete the element set for C₅₅H₇₂MgN₄O₅.

Mg

All 73 elements named

Your complete run in recall order.

  1. Na11

    Sodium

    #1 recalled

  2. H1

    Hydrogen

    #2 recalled

  3. He2

    Helium

    #3 recalled

  4. K19

    Potassium

    #4 recalled

  5. Li3

    Lithium

    #5 recalled

  6. Be4

    Beryllium

    #6 recalled

  7. Ca20

    Calcium

    #7 recalled

  8. C6

    Carbon

    #8 recalled

  9. N7

    Nitrogen

    #9 recalled

  10. O8

    Oxygen

    #10 recalled

  11. P15

    Phosphorus

    #11 recalled

  12. In49

    Indium

    #12 recalled

  13. I53

    Iodine

    #13 recalled

  14. Rn86

    Radon

    #14 recalled

  15. Kr36

    Krypton

    #15 recalled

  16. Cl17

    Chlorine

    #16 recalled

  17. F9

    Fluorine

    #17 recalled

  18. Og118

    Oganesson

    #18 recalled

  19. Xe54

    Xenon

    #19 recalled

  20. U92

    Uranium

    #20 recalled

  21. Np93

    Neptunium

    #21 recalled

  22. Pu94

    Plutonium

    #22 recalled

  23. Cs55

    Cesium

    #23 recalled

  24. Pt78

    Platinum

    #24 recalled

  25. Au79

    Gold

    #25 recalled

  26. Rb37

    Rubidium

    #26 recalled

  27. Ne10

    Neon

    #27 recalled

  28. Ba56

    Barium

    #28 recalled

  29. B5

    Boron

    #29 recalled

  30. Bk97

    Berkelium

    #30 recalled

  31. La57

    Lanthanum

    #31 recalled

  32. Pd46

    Palladium

    #32 recalled

  33. Nh113

    Nihonium

    #33 recalled

  34. Ts117

    Tennessine

    #34 recalled

  35. Y39

    Yttrium

    #35 recalled

  36. Tb65

    Terbium

    #36 recalled

  37. Yb70

    Ytterbium

    #37 recalled

  38. Ac89

    Actinium

    #38 recalled

  39. At85

    Astatine

    #39 recalled

  40. Ce58

    Cerium

    #40 recalled

  41. Er68

    Erbium

    #41 recalled

  42. Fl114

    Flerovium

    #42 recalled

  43. Lv116

    Livermorium

    #43 recalled

  44. Ge32

    Germanium

    #44 recalled

  45. Bi83

    Bismuth

    #45 recalled

  46. Ti22

    Titanium

    #46 recalled

  47. Fe26

    Iron

    #47 recalled

  48. Sn50

    Tin

    #48 recalled

  49. Cu29

    Copper

    #49 recalled

  50. Sb51

    Antimony

    #50 recalled

  51. Ra88

    Radium

    #51 recalled

  52. Pr59

    Praseodymium

    #52 recalled

  53. Nd60

    Neodymium

    #53 recalled

  54. Si14

    Silicon

    #54 recalled

  55. Am95

    Americium

    #55 recalled

  56. Md101

    Mendelevium

    #56 recalled

  57. Cd48

    Cadmium

    #57 recalled

  58. Cm96

    Curium

    #58 recalled

  59. Es99

    Einsteinium

    #59 recalled

  60. Gd64

    Gadolinium

    #60 recalled

  61. Ar18

    Argon

    #61 recalled

  62. Co27

    Cobalt

    #62 recalled

  63. Rh45

    Rhodium

    #63 recalled

  64. Pb82

    Lead

    #64 recalled

  65. Al13

    Aluminum

    #65 recalled

  66. Br35

    Bromine

    #66 recalled

  67. V23

    Vanadium

    #67 recalled

  68. Ag47

    Silver

    #68 recalled

  69. Ru44

    Ruthenium

    #69 recalled

  70. Lu71

    Lutetium

    #70 recalled

  71. Cn112

    Copernicium

    #71 recalled

  72. Bh107

    Bohrium

    #72 recalled

  73. Zn30

    Zinc

    #73 recalled

Recall constellation

Recall by element family

Open a group to learn every answer you missed.

Three for next time

Keep climbing.

See every ranked run, then take another shot.

Play again Open full leaderboard →
Back to elements