9
F
Fluorine
18.998 u
Fluorine
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Period
2
Group
17
Block
p-block
Phase (STP)
Gas
Fluorine is the most electronegative and reactive of all elements. It is used in toothpaste, Teflon, and refrigerants.
Appearance: Pale yellow gas
Compounds Containing Fluorine
More Halogen
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Frequently Asked Questions
What is Fluorine?
Fluorine (F) is a chemical element with atomic number 9. It is a gas at standard temperature and pressure, classified as a halogen.
What are the key properties of Fluorine?
Fluorine has an atomic mass of 18.998 u, density of 0.001696 g/cm³, melting point of -219.7°C, boiling point of -188.1°C.
What is the electron configuration of Fluorine?
The electron configuration of Fluorine is [He] 2s2 2p5. It is in the p-block of the periodic table.
Who discovered Fluorine?
Fluorine was discovered by Henri Moissan in 1886.
What is the electronegativity of Fluorine?
Fluorine has an electronegativity of 3.98 on the Pauling scale.