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• HALOGEN ELEMENTS FREE

Fluorine is the most reactive of the halogens, and indeed of all elements, with a variety of distinguishing features.

However, the characteristics of fluorine, chlorine, bromine, and iodine gradually change to astatine, with the difference between two consecutive elements being most obvious with fluorine and chlorine. In terms of their overall chemical behaviour and the features of their compounds with other elements, the halogen elements are strikingly similar. Because they are made up of only short-lived radioactive isotopes, astatine and tennessine do not exist in nature. 0.06 fluorine, 0.031 chlorine, 0.00016 bromine, and 0.00003 iodine are the percentages of halogens found in Earth’s crust igneous rocks. In its mixed form, fluorine is the most common halogen in the Earth’s crust.

HALOGEN ELEMENTS FREE

The free halogen elements are not found in nature due to their high reactivity. They were given the name halogen, which comes from the Greek roots hal- (“salt”) and -gen (“to produce”), since they all produce sodium salts with comparable properties, the most well-known of which is sodium chloride, also known as table salt or halite. Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts) are the halogen elements. Any of the six nonmetallic elements that make up Group 17 (Group VIIa) of the periodic table are referred to as halogen.