20 chemical elements
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Turn each chemical symbol into an element name, from H to Fe and beyond. Find all 20 answers in 120 seconds. Play in any order, then discover the complete answer list and your saved score.
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Explore the quizzes →Quick Quiz
Choose a quiz, then press Start. Type answers in any order and press Enter; recognised answers also fill automatically. Accents, case and punctuation do not matter. The clock keeps running if you leave the page. Finish early to reveal the answers.
How to improve
Start with the answers you know. You can answer in any order: skip a difficult clue and return later. Each distinct answer counts once. A perfect score means finding every answer before the deadline.
Saved games and results
The countdown starts only when you press Start and continues during interruptions. Your accepted answers are saved on the server. Compare scores within the same quiz and language, and challenge a friend to the same timed quiz.