Interactive Periodic Table of All 118 Elements
Click or tap any element to see its symbol, atomic number, atomic mass, group, period and category. Filter by category or state, or switch to Quiz mode to test what you know.
Hydrogen
nonmetalUnlock the advanced quiz packs
The core quiz above is fully free — all three modes, all 118 elements, unlimited plays. Pro adds focused practice packs and deeper stats:
- Category packs — drill just noble gases, halogens, transition metals, lanthanides & actinides, or metalloids.
- Timed challenge mode — 60-second sprint against the clock with a live combo streak.
- Hard mode — atomic mass recall and group/period questions, no multiple choice.
- Full stats dashboard — accuracy by category, weakest elements, and quiz history.
Want to try first? Use demo code AV-ALL-DEMO to preview every Pro feature on this device.
About the Periodic Table
The periodic table arranges all known chemical elements by increasing atomic number — the count of protons in each atom's nucleus. Rows are called periods (1 through 7) and represent the number of electron shells an atom has. Columns are called groups (1 through 18) and gather elements that share similar valence-electron configurations, which is why elements in the same group — like the noble gases in group 18, or the halogens in group 17 — tend to behave alike chemically.
Elements are also sorted into broad categories based on their physical and chemical behaviour: reactive alkali metals (group 1) and alkaline earth metals (group 2) on the far left; the wide band of transition metals in the middle, including familiar names like iron, copper and gold; post-transition metals, metalloids and reactive nonmetals stepping across the right side; the sharply reactive halogens in group 17; and the famously unreactive noble gases in group 18. The two rows pulled out below the main grid are the lanthanides and actinides, the f-block elements that would otherwise stretch the table impractically wide.
How to use this tool
Click or tap any tile in the grid to open a detail card with the element's symbol, name, atomic number, atomic mass, group, period, block and physical state at room temperature. Use the category chips to highlight a single family — for example, tap "Noble gas" to see exactly where argon, krypton and xenon sit — or use the state filters to see which elements are solids, liquids or gases at 25°C (only bromine and mercury are liquid; hydrogen, helium, nitrogen, oxygen, fluorine, chlorine, neon, argon, krypton, xenon, radon and oganesson are gases at room temperature).
Quiz mode
Switch to Quiz mode to test your recall with three question styles: name the element from its symbol, pick the correct symbol given the name, or identify the element from its atomic number. Each round is ten questions drawn randomly from the full set of 118, with your score and personal best saved locally. Pro unlocks category-specific practice packs, a 60-second timed challenge, a typed-answer hard mode for atomic mass, and a stats dashboard that tracks your accuracy by category over time.
Frequently Asked Questions
Educational reference only. Atomic mass values shown are standard (conventional) atomic weights rounded to match common textbook usage; masses for elements without stable isotopes (e.g. technetium, promethium, and all elements beyond bismuth) are the mass number of the most stable known isotope, as is standard practice.
Get Weekly Study Tools
New study tools, quizzes and cheat sheets, straight to your inbox.