Periodic Table Explorer 118 elements
Sound
Dark
Arrow keys navigate · Enter selects · Shift+click two elements to compare
⚛
Loading periodic table…
If this message persists, JavaScript isn't running in this view.
Open the file directly in Chrome, Firefox, or Edge.
0
Score
0
Streak
0
Done
—
%
Achievements
Mastery map0 / 118
0
Won
0
Lost
0
Points
MYSTERY ELEMENT
?
Identify this element
Daily Challenge
5 questions · new set every day · race the clock
Today's leaderboard

Reaction simulator

Select two elements to see what compound they form.

+

Molar mass calculator

Enter a chemical formula. Supports parentheses (e.g., Ca(OH)₂) and hydrates (CuSO4·5H2O or CuSO4.5H2O).

Try:

Teacher controls

Select elements to restrict Quiz, Speed Round, Flashcards, and Game to a specific set.

Active lock

No lock active — all 118 elements available.

Generate printable quiz

Creates a worksheet using the locked element set.

questions

Report an issue or share feedback

We read every submission. Critical bugs get priority.