Question

Which element is a halogen?

Answer 1

Halogens are a group of elements found in the periodic table. They are the elements found in Group VIIA. It consists only of five chemical elements which are fluorine, chlorine, bromine, iodine and astatine. They are called as such because they are the salt formers.

Answer 2

Answer: the group 7 includes fluorine (atomic symbol F), chlorine (atomic symbol Cl), bromine (atomic symbol Br), iodine (atomic symbol I), and astatine (atomic symbol At)

Explanation: Their reactivity decreases down the group. Halogens show different physical properties based on their positions in the periodic table. Physical properties include conductivity, electronegativity, melting and boiling points. All halogens are non-metals and are diatomic in the gaseous state. The non-metallic character decreases from fluorine to iodine