Hence, both of the atoms have seven valence electrons. The electronic configuration of I and Cl is 4d105s25p5 and 3s23p5, respectively. Completion of the lewis structure by fulfilling the criteria of the octet rule for every atom, if possible.Determination of the total number of valence electrons.The drawing of the Lewis structure of any compound consists of the following steps: It includes only electrons (bonding as well as nonbonding) that are present in the valence (outermost) shell of an atom.Īccording to the lewis theory, every atom prefers to have eight electrons around itself in the valence shell except Helium and Hydrogen.
The 2D structure of any compound is best represented by drawing its Lewis structure. In the last, we will study its polarity, i.e., iodine trichloride is polar or nonpolar. We will approach chemical bonding by studying Lewis theory for knowing its Lewis structure and then we will discuss the hybridization of iodine atom in iodine trichloride molecule. Let us start to study the chemical bonding in iodine trichloride to understand its chemistry. The molecular weight of iodine trichloride is 233.26 g/mol. It is so reactive that it exists as a dimer, I2Cl6 in solid-state. ICl3 is bright yellow solid, which turns into red color upon exposure to light due to the formation of elemental iodine. They are more reactive than individual halogen atoms from which they are formed. These compounds are generally written as ABn where n= 1, 3, 5, and 7 A and B are less electronegative and more electronegative elements, respectively. Interhalogen compounds are molecules, which contain at least two different halogen atoms. ICl3, named Iodine Trichloride, is an Interhalogen compound.
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