Here's what the formula tells us:

* N: Represents the element nitrogen.

* I: Represents the element iodine.

* 2: Indicates there are two nitrogen atoms in the molecule.

* 4: Indicates there are four iodine atoms in the molecule.

Important Note: Tetraiodine dinitride is a highly unstable and explosive compound, making it very dangerous to handle. It is not commonly encountered in everyday chemistry.