An unknown ionic compound is made of a monoanion and a monocation who both have the same electronic configuration as argon. Don't forget to indicate the physical state of each chemical species. A)what is the electronic configuration of argon? B)knowing the charge and electronic configuration of the ions, identify them. C)what are the electronic configuration of the parent elements? D)rank argon and the two parent elements by order of increasing radius. Explain your answer.

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