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Interactive Periodic Table

Explore all 118 elements — click any element for its symbol, mass, and category.

Reactive nonmetalNoble gasAlkali metalAlkaline earth metalMetalloidHalogenPost-transition metalTransition metalLanthanideActinideUnknown properties

⚛️All 118 elements, explorable

The complete modern periodic table — click any element for its atomic number, symbol, mass, and category; search by name, symbol, or number; and read the colour-coded families at a glance. A downloadable branded PDF makes it printable for the study wall.

🧪Reading the table like a chemist

  • Columns (groups) share chemistry: group 1 alkali metals all react violently with water; group 18 noble gases barely react at all.
  • Rows (periods) add electron shells — size grows down a group, shrinks across a period.
  • The staircase from boron to astatine separates metals (left) from non-metals (right), with metalloids straddling it.
  • Atomic mass on each tile is the weighted average of natural isotopes — why chlorine shows 35.45.
Why is sodium (Na) explosive in water while neon (Ne) is inert? One column apart in electron terms: Na has one loose outer electron desperate to leave; Ne's shell is already full.

💡Memorising what matters

  • Boards need the first 20 elements in order — the classic mnemonics still work best.
  • Learn family properties, not individual facts: one rule about alkali metals covers six elements.
  • Symbols from Latin names trip everyone: Na (natrium), K (kalium), Fe (ferrum), Ag (argentum), Au (aurum), Pb (plumbum).

💡 Frequently Asked Questions

How do I use this periodic table?+

Click any element to see its atomic number, symbol, atomic mass, and category. Use the search box to jump to an element by name, symbol, or atomic number.

What do the colours mean?+

Each colour represents an element category — alkali metals, noble gases, halogens, transition metals, and so on. The legend below the table explains each one.

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