Chemical formula for iodide

Answer 1

The only iron iodide listed in the Handbook of Chemistry and Physics (1985) is iron (II) iodide, with the formula FeI2 Hypothetically, there could be an iron (III) iodide with the formula FeI3, but this probably spontaneously transforms into iron (II) iodide and elemental iodine.

Answer 2

" Iodide " is an ion, and its formula is I−

Iodine, on the other hand is an element, with the symbol I

(It's a capital "i")

Answer 3

Iodide is I- , an Iodine atom with 1 extra (gained) electron.

Answer 4

Iodine is an element.

Answer 5

Iodide ion : I-

Answer 6

It's 'I' with a negative charge!