Question

halogens are highly ____ since they ____ easily to form ions. responses nonreactive, lose 2 electrons reactive, lose 1 electron reactive, gain 1 electron nonreactive, lose 1 electron

Explanation:

Halogens (Group 17 elements) have 7 valence electrons. They aim for a full - shell (8 electrons) configuration. So, they gain 1 electron easily. Also, since they can readily gain electrons to form ions (e.g., \(Cl^-\) from \(Cl\)), they are highly reactive.

Answer:

reactive, gain 1 electron