⚖️ FREE CHEMISTRY TOOL — 118 ELEMENTS

Interactive Periodic Table

All 118 elements · Quiz Mode · Element Compare · Melting/Boiling Points · Fun Facts

🔍 Search 🆘 Filter 🧠 Quiz Mode 📈 Compare 🏋 Fun Facts
Lanthanides (57–71)
Actinides (89–103)
📺 Click any two elements in the table above to compare them side by side.

Element

Interactive Periodic Table — All 118 Elements with Quiz & Compare

TC
ToolsCoops Editorial TeamUpdated: May 21, 2026 · Science Tools
Periodic TableChemistry 118 ElementsScience Tool Quiz ModeToolsCoops

The Periodic Table of Elements is the most important reference in chemistry — a systematic arrangement of all 118 known elements organised by atomic number, electron configuration, and recurring chemical properties. The ToolsCoops Interactive Periodic Table v2 takes this reference further with clickable element cards, quiz mode, element comparison, melting and boiling points, and fun facts for every element.

New in v2 — Quiz Mode

Quiz Mode tests your chemistry knowledge by presenting an element and asking you to identify it from four multiple-choice options. Questions rotate through symbol recognition, name recall, and atomic number identification. Your score is tracked across 10 questions. Click Quiz Mode in the toolbar to start.

New in v2 — Element Comparison

Click Compare Mode, then click any two elements to see them side by side. The comparison shows atomic number, atomic mass, group, period, state, melting point, boiling point, and electron configuration simultaneously — making it easy to spot similarities and differences between elements in the same group or period.

Structure — Groups, Periods, Blocks

  • 18 Groups (vertical): Elements in the same group share the same number of valence electrons and similar chemical properties.
  • 7 Periods (horizontal): Each period represents a new electron shell. Properties shift from metallic (left) to nonmetallic (right).
  • s-block (Groups 1-2): Alkali and Alkaline Earth Metals.
  • p-block (Groups 13-18): Includes metalloids, nonmetals, halogens, noble gases.
  • d-block (Groups 3-12): Transition Metals.
  • f-block (Lanthanides & Actinides): Inner transition metals below the main table.

Element Categories

CategoryExamplesKey Property
Alkali MetalsLi, Na, KHighly reactive, react with water
Alkaline EarthBe, Mg, CaLess reactive, form 2+ ions
Transition MetalsFe, Cu, AuMultiple oxidation states, conductors
MetalloidsSi, Ge, AsProperties between metals and nonmetals
NonmetalsC, N, OPoor conductors, essential for life
HalogensF, Cl, BrVery reactive, form salts with metals
Noble GasesHe, Ne, ArInert, full outer shells
ActinidesU, Pu, ThMostly radioactive, nuclear energy
💡 Quiz TipUse Quiz Mode after studying the table. Start with the first 20 elements (Hydrogen to Calcium) — these are the most commonly tested in chemistry exams worldwide.
✅ 100% PrivateNo data is sent to any server. All features run in your browser using JavaScript. Your searches, quiz answers and comparisons stay on your device.

❓ Frequently Asked Questions

8 Q&A
A systematic arrangement of all 118 chemical elements organized by atomic number and recurring chemical properties. Created by Dmitri Mendeleev in 1869.
118 confirmed elements from Hydrogen (Z=1) to Oganesson (Z=118). Elements 1-94 occur naturally; 95-118 are synthetic.
Quiz Mode tests your chemistry knowledge with 10 multiple-choice questions about element symbols, names, and atomic numbers. Your score is tracked.
Click Compare Mode, then click any two elements. A side-by-side panel shows their atomic number, mass, group, period, state, melting point, boiling point and electron configuration.
How electrons are distributed across atomic orbitals (1s, 2s, 2p, 3d etc.). It determines the chemical behavior of each element.
Yes, 100% free. No signup, no registration, no limits. Works on all devices.
Yes. Horizontally scrollable on mobile with full touch support. All features work on modern mobile browsers.
Quiz Mode (10-question test), Element Comparison (side-by-side), Melting & Boiling points in element modal, Fun Facts for every element, and improved design.
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