Question

similar properties figure 2 at room temperature, chlorine is a gas, bromine is a liquid, and iodine is a solid. however, all three elements share some physical properties. they also have very similar chemical properties. they are grouped in the same column on the periodic table. what common property do you observe?

Explanation:

Chlorine, bromine, and iodine are halogens. Elements in the same group of the periodic table have similar chemical properties due to the same number of valence electrons. They also show trends in physical properties like state at room - temperature.

Answer:

They have similar chemical properties and some related physical properties because they are in the same group (halogens) of the periodic table.