Question

fluorine , cl and br are put in one group on the basis of their similar properties. 1) what are those similar properties?2)what is the common name of this group or family?​

Answer 1

Answer:

all three are halogens

Explanation:

they have the same valance electron

• Halogens are highly reactive nonmetal elements in group 17 of the periodic table.

• Halogens include solids, liquids, and gases at room temperature, and they vary in color.

• Halogens are among the most reactive of all elements. They have seven valence electrons, so they are very “eager” to gain one electron to have a full outer energy level.

• Halogens have a variety of important uses, such as preventing tooth decay and killing germs.