What is the chemical name of I2 (2 as a subscript)?

Question

It's 2 iodines bonded together by a truly non polar covalent bond.

Why is it also called Iodine? So I and I with a 2 subscript has no difference?

Answer 1

Iodine

Answer 2

Simply Iodine

Answer 3

The first responder was first, so award him best answer. The answer is iodine. Two iodine atoms cannot exist independently for long without their coming together. Indeed, they are held together by a nonpolar covalent bond. After all, the electronegativity of iodine is equal to that of iodine, so... Iodine is so called from the Greek word for violet: iodes.

Answer 4

Iodine

Answer 5

I stands for Iodine in the periodic elements charts. It is a Halogen used mainly in medicine, photography and in dyes.
the I subscript 2 is the molecular formula used to indicate two Iodine attoms...called Diatomic molecules.
Few diatomic molecules do not occure naturally on Earth outside laboratories. Earths atmosphere is an example..considering of mostly N2 and O2.

Answer 6

I is atomic iodine, while I₂ is molecular iodine. Although the bond between two iodine atoms is considerably weaker than those between atoms of the lighter halogens above it, as is the free-radical character of the unbonded atom, the equilibrium still favors the diatomic molecule.

Answer 7

It's in Group 7 and all Group 7 molecules are halogens/diatomic molecules. Their name doesn't change but that's the form they appear molecularly so just to beat a dead horse it is Iodine.