Elements - Real or Fake?

Click elements on the periodic table, non-existent ones will kill you; Isotopes and alternate names of certain elements count, non-synthesised synthetic elements/isotopes do not.
If you get a wrong answer and don't know why, read the How to Play section under the title.
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Last updated: December 28, 2025
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First submittedDecember 28, 2025
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Average score70.0%
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Yttrium
Syrium
Diamond
Silver
Copper
Mercurum
Antihydrogen
Unobtainium
Coloradite
Unbitrium
Kyrium
Chromium
Unium
Ununennium
Phosphorus
Tritium
Hydrogen-4
Einsteinium
Ceilium
Magnesium
Boron
Ununpentium
Bismuth
Yevelite
Calerium
Oxigen
Pyrite
Benton
Mytite
Secite
Indium
Plutonium
Ninovium
Hastium
Helium
Yoylelite
Roentgenium
Osmium
Silicon
Incerium
Antihelium
Germanium
Patrium
Espium
Lithium
Uranium
Protium
Floridium
Nickel
Vanadium
Oganesson
Gold
Francium
Salt
Krypton
Bronze
Tennessine
Thulium
Zirconium
Calcite
Deltium
Carbon
Astatine
Rutherfordium
Meletovum
Lead
Klotum
Velissium
Oxygen
Barium
Nitrogen
Muonium
Mendelevium
Moscovium
Nilium-1
Zacium
Citrium
Gullibulium
Hydrogen
Tyrotilium
Gadolite
Deltite
Hafnium
Neon
Cinton
Xenon
Xerium
Cosate
Molybdenum
Alpha particle
Tin
Venerium
Deuterium
Technetium
Unbinilium
Water
Quasium
Protactinium
Tetrium
Novium
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