Interactive periodic table - click elements, enter quiz mode, and guess elements from their properties. Gamified learning.
Select element names, symbols, atomic numbers, or properties.
Identify elements or match properties to the correct element.
See how many you got right and which elements to study.
A full periodic table fills the page with all 118 named elements, and clicking a cell brings up that element's record - name, symbol, atomic number, atomic mass, and group. Quiz mode plays the same data in reverse: it shows you a property and asks you to name the element, one round at a time, with guesses checked and scored as you go. The surprise most people hit is that questions draw from the whole table, not just the famous elements - terbium and tellurium appear as often as oxygen and gold.
A concrete input and expected output from the current implementation.
Input
gold
Expected output
Correct - gold (Au).
In a round that shows the property "atomic number: 79" and asks for the element, the quiz accepts "gold" because gold is the only element with 79 protons and Au is its symbol. The guess matches exactly one element record, so the answer is unambiguous.
The page lays out all 118 named elements in the conventional 18-column grid, ordered by atomic number and arranged by family. Clicking a cell selects that element and shows its record - name, symbol, atomic number, atomic mass, and group position. The quiz asks about exactly these properties, so what you study in the table is what you are tested on in quiz mode.
Quiz mode reverses the direction: the tool presents a property - a symbol, an atomic number, or a mass figure - and you answer with the element's name. Each guess is checked and scored, so a run reads as a game of correct and missed answers. The clue can be any of several properties, so runs vary: one round asks for an element by its symbol, the next by its atomic number.
Not from what the page describes: quiz rounds appear to draw from the whole table, with no mention of filtering by element, family, or difficulty. The practical workaround is to run short rounds, note the misses, drill those cells on the table, and run again.
Atomic numbers and symbols are fixed and reliable. Atomic masses are isotope-weighted averages, and the official values are revised occasionally by IUPAC, so a mass that differs slightly from your textbook can still be correct as of its date. When in doubt, compare with the IUPAC or NIST values linked below.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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