Could the halide ions (fluoride, chloride, bromide and iodide) be used in the same applications as the noble gases?

Question

After all the halide ions have the same electron configuration as the noble gases, so they should have similar properties…

In: 2

Answer 1

Well, no, because they’re now ions. They have a net negative charge which means they are going to be fairly reactive with respect to positively charged ions whereas noble gases would be inert.