Halogen Elements || Why Halogen are So Reactive || Elemental Nature
A halogen element refers to an element of Group A of the periodic system. Including fluorine (F), chlorine (Cl), bromine (Br), iodine (I), thorium (At), Tennessine(Ts), referred to as halogen. They all exist as typical salts in nature and are salt-forming…
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December 8, 2019