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!
Quiz by
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!
Potassium
Tin
Sulphur
Manganese
Lithium
Yttrium
Gold
Ytterbium
Helium
Hydrogen
Vanadium
Phosphorus
Fluorine
Oxygen
Iodine
Holmium
Sodium
Carbon
Neptunium
Tungsten
Nitrogen
Zinc
Uranium
Krypton
Copper
Boron
Neon
Chlorine
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1 Comments
+1
Level 66
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?