Question

Group__ contains elements like fluorine chlorine bromine iodine and astatine

Answer 1

Group 17 or vii contain element like fluorine, chlorine, bromine, iodine and astatine

Step-by-step explanation

• Group 17 element in periodic table are referred to as halogen.
• They have 7 valence electron
• They are highly reactive
• Have a low melting and boiling point but increases down the group
• They have a tendency to form salt
• There electronegativity decreases down the group.