Halogens — Definition, Formula, Properties & Uses | AllChemicals | AllChemicals

What is Halogens?

Halogens are the elements of Group 17 (VIIA) of the periodic table: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). They are highly reactive nonmetals characterized by having seven valence electrons, a strong tendency to gain one electron to form halide ions (X⁻), and the ability to form diatomic molecules (F₂, Cl₂, Br₂, I₂). Halogens are widely used as disinfectants, in the synthesis of polymers and pharmaceuticals, and in industrial chemical processes.

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Term Halogens

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What is Halogens?

Halogens are the elements of Group 17 (VIIA) of the periodic table: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). They are highly reactive nonmetals characterized by having seven valence electrons, a strong tendency to gain one electron to form halide ions (X⁻), and the ability to form diatomic molecules (F₂, Cl₂, Br₂, I₂). Halogens are widely used as disinfectants, in the synthesis of polymers and pharmaceuticals, and in industrial chemical processes.

More "H" Terms

1-Hexanol C6H14O 2-Hydroxyethyl methacrylate C6H10O3 4-Hydroxybenzaldehyde C7H6O2 Haber Process N₂ + 3H₂ ⇌ 2NH₃ | ΔH = −92 kJ/mol Hafnium Hf Half Cell Half Life Half-Cell E = E° − (RT/nF)lnQ Half-Life A(t) = A₀e^(−λt); t½ = ln2/λ Half-Reaction Halide X⁻ (e.g., F⁻, Cl⁻, Br⁻, I⁻) Halogen F₂, Cl₂, Br₂, I₂, At; Group 17; ns²np⁵ valence configuration

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