Periodic Table
주기율표 · periodic table · 원소 · 元素周期表 · 화학 원소
Periodic Table
Tap an element to see its atomic number, mass, group, period, and category.
Atomic masses are standard atomic weights; for elements with no stable isotope, the mass number of the most stable isotope is shown.
How to use
- 1
Tap an element cell to see its details (atomic number, mass, group, period, category) in the card above.
- 2
Use the category colors and legend to tell metals, nonmetals, halogens, and noble gases apart.
- 3
Scroll sideways if the table is wide; lanthanides and actinides are in the two rows below.
FAQ
Is this tool free?
Yes — no sign-up, no installation, completely free to use right away.
What is this tool?
An interactive periodic table of all 118 chemical elements. Tap an element and a card shows its atomic number, mass, group, period, and category, with category colors and a legend to tell metals, nonmetals, halogens, noble gases, and more apart. Element names are shown in English, Korean, and Japanese (switch the site language and the card name follows); lanthanides and actinides sit in the two rows below the main table. Atomic masses are standard atomic weights, and everything runs in your browser, free with no install.