Because of the seven valence electrons in their outer shells, halogens have a very high electronegativity. They are therefore much more reactive than noble gases, which have filled outer shells.
Because they're located on the very right of the periodic table, meaning that they have full outer shells. What atoms "want" in a reaction is to have full outer shells, so noble gases don't react...
Noble Gases have a complete set of electrons in their orbits. As seen in a Bohr Diagram, there can by two electrons in the first orbit, eight in the next two, and eighteen in the next two. When an...
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