Elementsl iodine is ' I2 '
The iodide anion is ' I^(-) '.
Iodine monoxide. Added. Iodine oxide is quite correct. Iodine has many oxidation states. Both Iodine oxide and iodine monoxide can be used as formula names with this oxidation state. IUPAC concurs.
The formula for ammonium iodide is NH4I. It consists of one ammonium ion (NH4+) and one iodide ion (I-).
The charge on elemental iodine is zero(0) However, the charge on the iodide anion is '-1' . Its formula is ' I^(-) '.
iodine and iron
The symbol for the iodine ion is I-.
I-1 It is Iodine with an electron added to complete the outer shell.
Iodine monoxide. Added. Iodine oxide is quite correct. Iodine has many oxidation states. Both Iodine oxide and iodine monoxide can be used as formula names with this oxidation state. IUPAC concurs.
The formula for ammonium iodide is NH4I. It consists of one ammonium ion (NH4+) and one iodide ion (I-).
Iodine ion is not consumed; in the first step the iodine ion is oxidized to iodine, in the second step iodine is reduced to iodine ion.
The charge on elemental iodine is zero(0) However, the charge on the iodide anion is '-1' . Its formula is ' I^(-) '.
iodine and iron
The symbol for the iodine ion is I-.
The chemical formula of iodate is IO3-. It consists of one iodine atom bonded to three oxygen atoms.
An iodine ion is named based on its charge. If it has a -1 charge, it is called an iodide ion. If it has a +1 charge, it is called an iodine ion.
Iodine typically forms a negatively charged ion (anion) with a charge of -1. Therefore, the correct symbol for an iodine ion would be I-.
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.
Iodine forms the iodide ion, (I^-), by gaining one electron. This ion has a charge of -1.