Halogen

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Halogens uu chemical elements hae jon ki periodic table me second-to-right column jiske Group 7 ke naam se bhi jaana jaawe hae, me hae. Ii group ke elemets hae: fluorine, chlorine, bromine, iodine, astatine, aur ununseptium. Halogen ke matlab "salt becomer", nai to "salt producer" hae. Halogaens bahut reactive hae aur iske jaada kar ke duusra element se jurraa paawa jaae hae.