Every bubble you pop lands here. Tap a row to reopen its details.
| Element | No. | Category | Atomic mass |
|---|---|---|---|
| Pop a bubble to add it to your collection. | |||
Every element in order, lightest to heaviest — tap any one to learn about it.
Quick answers for curious minds - great for homework.
The periodic table is a chart of all 118 known chemical elements - the ingredients that make up everything in the universe. Elements are arranged by their atomic number (how many protons they have), and elements in the same column behave in similar ways.
There are 118 confirmed elements, from hydrogen (element 1, the lightest) to oganesson (element 118). About 90 occur naturally on Earth; the rest have been made by scientists in laboratories.
By default each colour is a family of elements - like alkali metals, noble gases or halogens. Elements in a family behave similarly. You can also colour the bubbles by state (solid, liquid or gas) or by electron block using the menus at the top.
Every element has a one- or two-letter shorthand, like H for hydrogen or Fe for iron. Some symbols come from Latin names - Fe is from "ferrum", Na (sodium) from "natrium", and Au (gold) from "aurum".
Yes - completely free, works on phones and tablets, and even works offline once you have visited. Pop bubbles, hear each element introduce itself, spin 3D atom models and test yourself with the Pop Quiz.