Question

what are bromine, iodine, fluorine, chlorine, astatine and tennessine collectively known as?​

Answer 1

⭐Here is your answer⭐

Bromine, iodine, fluorine, chlorine, astatine, and tennessine collectively known as halogens.

Explanation:

Halogens are placed in group 17 of modern periodic table. They react with metals to create wide range of salts. Many halogens have ability to form acid with hydrogen. Elemental halogens are lethally toxic and poisonous to the human body. Many aquatic plants and animals are rich in halogen compounds. Halogens are highly reactive in nature due to the high electronegativity of atoms due to their higher effective nuclear charge

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Answer 2

Answer:

bromine, iodine, fluorine, chlorine, astatine and tennessine collectively known as HALOGENS

The halogens are a group in the periodic table consisting of five chemically related elements: Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine