Fluorine is an essential element that is found in nature and is used in a variety of applications. It is the most electronegative element on the periodic table, meaning that it has a strong affinity for electrons. Fluorine is used in a wide
From Wikipedia
Fluorine is a chemical element; it has the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as pale yellow diatomic gas. Fluorine is extremely reactive as it reacts with all other elements except for the light noble gases. Fluorine in its elemental form is highly toxic.