1.

Write short notes on : Halogens or group 17 elements.​

Answer»

Answer:

These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), BROMINE (BR), iodine (I), and astatine (At). ... Because the halogen elements have seven VALENCE electrons, they only REQUIRE one additional electron to form a full octet

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