Question

What is the oxidation state of elemental iodine? What other oxidation states can iodine adopt?

Answer 1

Of elemental iodine......?

Explanation:

Of course, elemental iodine is ZEROVALENT, i.e. `stackrel(0)I_2`. In its compounds, iodine can assume oxidation states of `-I, 0, +I.....+V,... +VII`; the `+VII` oxidation state occurs in the interhalogen, `IF_7`, and in salts of periodate.... `IO_4^(-)`

Answer 2

Iodine has multiple possible valances

Explanation:

Iodine when it combines with a metal or an element with low electronegativity becomes -1 This is iodines preferred valance.

When Iodine combines with a non metal with a high electronegativity its valances become positive.

`I_2O_2` periodineoxide Iodine has a valance of +1

`IO^-1` Iodine has a valance of of +1 hypo iodious ion

`IO_2^-1` iodine has a valance of +3 iodious ion

`IO_3^-1` iodine has a valance of +5 iodonic ion

`IO_4^-1` iodine has a valance of +7 hyper iodonic ion

Because Iodine has 7 valance electrons it has multiple possible valance numbers