Periodicity Project
Charles Ji and Alex Iddins
Home
Classification
Metals
Non-Metals
Metalloids
Trends
Melting Point
Ionization Energy
Atomic Radius
Chemical Reactivity
Ion Charge
Conductivity
Order
Properties of Families
Alkali Metals
Alkaline Earth Metals
Halogens
Noble Gases
Metallic Character
Characteristics
Halogens
Properties:
highly reactive
at room temperature and pressure, fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids
generally poisonous
poor conductors