Skip to content
Si: 2·8·4

elements · 14 / 118 · All 118

Si

Silicon

14
Mass 
28.085
Lifeforce 
Earth
In the body 
bones, liver

Sand, glass, silicon chip: the same atom, three civilizations. And beneath it all: the bedrock of the Earth, second most abundant element in the crust. You are standing on it right now.

A terraced slope with laid stone foundations and visible roots; a figure sets a stone in place.
Plate · Earth Earth never hurries. It holds, stone by stone, whatever is meant to last.

Forged in oxygen-burning massive stars. Together with oxygen, forms the silicate rock of every terrestrial planet.

Lab note · Forms, with oxygen, the silicate rock of every terrestrial planet; in the body a trace remains: ≈1 g in connective tissue.

Tool · Cosmic origin

Where your atoms come from

Si · Star fusion

Forged in the cores of living stars over billions of years of stellar fusion.

14 of the 118 elements share this origin.

Choose a stage: click, or arrow keys. · Cosmic nucleosynthesis · current standard model

Tool · Periodic table

Your place in the system

  • Fire
  • Water
  • Air
  • Earth
  • Source

Click any element to go there.