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F: 2·7

elements · 9 / 118 · All 118

F

Fluorine

9
Mass 
18.998
Lifeforce 
Water
In the body 
bones

It eats through glass. It cannot exist alone. Too hungry. And of all elements, this one, in tiny doses, hardens your tooth enamel.

A still bowl on a stone catches rain, overflows and waters young sprouts.
Plate · Water Water grasps at nothing. It receives, until the bowl overflows and feeds.

Fluorine. Element nine. The most reactive nonmetal that exists. Eats through glass. Cannot exist alone. Too hungry. In tiny doses, it strengthens your teeth.

Lab note · ≈2.6 grams in your body, spread across tooth enamel and bone.

Tool · Cosmic origin

Where your atoms come from

F · 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.