Science quiz
Element extremes: the densest, hottest and greediest
Each round shows a top five with the figures on show and the names hidden. A right name opens itself and everything below it, so aim for number one.
- Format
- Biggest answer
- Items
- 20 to unlock
- Limit
- 1:00
- Level
- Hard
- Checked
- 2026.10.03
- Rounds
- 4
- Entries
- 20
- Time limit
- 1:00 a round
- Scoring
- Your best guess and everything below it
- Name the biggest element and the whole table unlocks at once.
- A smaller answer unlocks itself and everything ranked below it. Guess again to climb.
- Press Enter to lock in a guess. A name that is not on the list costs nothing but time.
- Pause whenever you like (Esc). The board hides while the clock is stopped.
Name the element with the highest figure in each table. The ranking appears when you start, with its figures showing and its names hidden.
About this quiz
The records of the periodic table cluster in one corner: the heavy transition metals of period 6 are the densest and the hardest to melt or boil. Electronegativity, the pull of an atom on shared electrons, peaks at the opposite corner.
- Melting and boiling points are in kelvin: subtract 273 for degrees Celsius.
- The two densest elements are within one percent of each other.
- Electronegativity is on the Pauling scale; helium, neon and argon have no value on it.
Sources
- [1]PubChem, National Institutes of Health. Periodic Table of Elements.
Last checked October 3, 2026
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