Question

Elements of 17th group vaiation of properties among the group element

Answer 1

Halogen element, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

Melting and Boiling Points (increases down the group)

Atomic Radius (increases down the group)

Ionization Energy (decreases down the group)

Electronegativity (decreases down the group)

Electron Affinity (decreases down the group)

Reactivity of Elements (decreases down the group)