Answer:
The periodic law demonstrated in halogens by:
All halogens have the same number of valence electrons and similar chemical properties
Step-by-step explanation:
- The halogen are located in the group of seven A of the periodic table example of halogen are iodine and chlorine.
- The halogens are the reactive non-metals in the periodic table, it reacts with alkali metals.
- Halogen responds with iron, iron wool outbreak into flames when it responds with fluorine gas.
- Halogen range from solid to liquid to gaseous at room temperature.