How to Use the Periodic Table
Browse the table: elements run by increasing atomic number, rows are periods and columns are groups, cell colors mark the category
Click any element cell — a popup shows its atomic number, symbol, name (with pinyin), relative atomic mass, period, group and category
Use the search box to find an element by symbol or name; the color legend at the bottom maps each category
🧪About this table
- All 118 elements: from H (1) to Og (118), none missing
- Each cell shows atomic number, symbol, name (with pinyin) and relative atomic mass
- Lanthanides (57–71) and actinides (89–103) sit in two separate rows below the main table, as is conventional
💡Tips
- Element symbols are international (H, Fe, Au…) and identical across languages
- A value in parentheses is the mass number of the most stable isotope
- All data is built into the page, so it works offline with no connection needed
The periodic table arranges all chemical elements by atomic number and electron configuration, a foundational reference for learning and looking up chemistry. This tool lays out all 118 elements in the classic 18-column format, colored by category for quick recognition.
🔒 All element data is built into the page — works offline, open and look up instantly; supports English/Chinese UI, click-for-details and search by symbol or name, no install and no signup.