Fluorine

Atomic Number: 9
Symbol: F
Atomic Mass: 18.998 u
Number of Neutrons: 10
Melting Point: -219.6°C
Boiling Point: -188.1°C
Electrons per shell: 2.7
Ion charge: 1-
Electron configuration: 1s² 2s² 2p⁵

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Fluorine is the 9th element in the periodic table, and has almost identical melting and boiling points as oxygen. It is the lightest halogen which include chlorine, bromine, iodine, astatine and tennessine (which is only predicted to be a halogen). It is a highly toxic pale yellow gas, and it can be extremely reactive. This is because it can react with almost every element, even some of the noble gasses. Fluorine is very dangerous and can cause my troubles to humans such as harm to bones, kidneys, nerves and muscles. It can even cause death with high concentrations. Fluorine does have uses though, it can be used as nuclear material for nuclear power plants, and is also used in tooth paste as flouride. Fluorine is found in minerals such as fluorite, fluorspar and cryolite. It is the 13th most common element in the Earth's crust. Henri Moissan is the one who discovered this element in 1886. The name, fluorine, is derived from the mineral fluorite which comes from the Latin word, "fluere" meaning "to flow."

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