On This Day In Chemistry

June 26th

Fluorine was isolated by the French chemist Henri Moissan on this day in 1886

The existence of fluorine (F) was well known, but for years scientists had failed to isolate it from its compounds, with some even dying in the attempt (called “fluorine martyrs”). Fluorine is the lightest of the halogen elements and has one single stable isotope, 19F.
 

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