Halogen Group
-Consists of the elements fluorine, chlorine, bromine, iodine, and astatine.
-When elements in this group from compounds, those compounds are Halide compounds.
Halogens are found in the form of diatomic molecules. But, Hexane is a molecular compound.
The sodium halide compounds are not composed of molecules.
Ionic compounds are substances composed of positive and negative ions. An ion is an atom or group of atoms. Also, an anion is a negatively charged ion, but a cannon is a positively charged ion.
Atoms gain or lose electrons to form negative or positive ions (remember protons are positive and electrons are negative!)
How willingly an atom gains or loses electrons to form ions is another example of a Periodic Property.
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