randarium
Science

Periodic Element Generator

Generate random chemical elements from the periodic table. Choose how to display each element—symbol only (e.g., "C"), name only (e.g., "Carbon"), or full format with atomic number (e.g., "6 C Carbon"). Enable unique mode to prevent duplicates across 100+ elements.

Also known as: periodic table · chemical elements · element generator

seeded

Presets

Output

No output yet — set your options and hit .
About this tool, tips & examples

What it does

The Periodic Element Generator draws random chemical elements from the periodic table — 100+ elements from hydrogen through fermium. Display them as symbols only (C), names only (Carbon), or full details with atomic number (6 C Carbon), generate up to 1,000 draws, and enable unique mode for no-repeat quizzes. Seeded, so a quiz can be regenerated for grading.

Common use cases

  • Chemistry quizzes — random symbol→name (or reverse) drills, with the display format controlling which direction is tested.
  • Flashcards — export CSV with full details and import into any flashcard app.
  • Test preparation — unique-mode draws cover the table without repeats, so practice sessions have no wasted questions.
  • Classroom games — element bingo, “guess the atomic number,” and team quiz rounds.

Settings

  • Display format — symbol only, name only, or full details with atomic number (a preset for each).
  • How many — 1 to 1,000 draws.
  • Unique only — no element repeats within a run; ideal for quiz sheets.
  • Seed — the same seed and settings regenerate the identical sequence — hand out the quiz, keep the seed as your answer key.

Privacy note

Draws happen locally in your browser; nothing is uploaded. The element data is standard periodic-table fact — the only random part is which elements come up.

FAQ

How do I quiz symbol-to-name? Generate symbols only for the handout, then regenerate with the same seed in full-details format — same elements, same order, now with answers.

Are all 118 elements included? The pool covers 100+ elements through fermium — everything a chemistry course drills on.

Can every student get a different quiz? Yes — one seed per student produces distinct sequences of the same difficulty, each reproducible for grading.