Science quiz
Click only the real element symbols
45 two letter symbols. 30 are on the periodic table and 15 are made up. Click the real ones.
- Format
- Click the grid
- Items
- 30 to click
- Limit
- 1:30
- Level
- Hard
- Checked
- 2026.10.03
- To find
- 30
- Time limit
- 1:30
- Minefield
- One wrong click ends it
- Click every valid item, in any order.
- Decoys look plausible. Read carefully.
- Pause whenever you like (Esc). The board hides while the clock is stopped.
Click every real element symbol, and nothing else. The grid appears when you start.
About this quiz
The real symbols here are the awkward ones: metals with Latin names, lookalike pairs such as Pd, Pt, Pu and Po, and the noble gases. The fakes are the first letters of words that sound chemical.
- Sb is antimony, from the Latin stibium, and Sn is tin, from stannum.
- Pl, Ox and Hy look plausible but platinum is Pt, oxygen is O and hydrogen is H.
- No element symbol contains the letter J or Q.
Sources
- [1]PubChem, National Institutes of Health. Periodic Table of Elements.
Last checked October 3, 2026
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| 01 | Click the first 36 elements in order Thirty six element symbols in A to Z order. Click them by atomic number, from H at 1 to Kr at 36. One wrong click ends the game. Science / Click the grid / 36 to click | Science | Click the grid | 36 | 2026.10.03 |
| 02 | Click only the real elements Twenty four real chemical elements hide among sixteen made up ones. Click every real element; one click on a fake ends the game. Science / Click the grid / 24 to click | Science | Click the grid | 24 | 2026.10.02 |
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