Elements With One-Letter Symbols - Sudden Death

Can you click the 14 elements whose symbols are just one letter? One wrong and the quiz ends!
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LegoBuilderOne
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Last updated: February 10, 2026
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First submittedFebruary 10, 2026
Times taken17
Average score85.7%
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Sudden Death. Clicking a wrong answer ends the quiz!
Oxygen
Lithium
Uranium
Sodium
Hydrogen
Potassium
Phosphorus
Yttrium
Nitrogen
Carbon
Neon
Tungsten
Vanadium
Zinc
Iodine
Boron
Gold
Chlorine
Ytterbium
Tin
Fluorine
Neptunium
Helium
Manganese
Sulphur
Krypton
Holmium
Copper
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1 Comments
+1
Level 65
Feb 10, 2026
See if you can make sense of this. When I had finished, I got 100% and 4 people had done the quiz. It said 0% of takers got 100%. Then, 100% of takers incorrectly guessed Holmium, but every correct answer was guessed 100% of the time, except Uranium at 50%. What?