Iodine is  an essential trace element in the human diet ( in most places, table salt comes with iodine as additive). Iodine deficiency causes goiter and thyroid problems.  Is  NaI an ionic or a covalent compound  Give the steric numbers for the iodine atom and identify the geometries of the following ions containing iodine and oxygen IO3- IO65- IO4- Write the electronic configuration of the molecular ion I2+, what is the bond order?

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