Question

2. Knowing that the groups of electrons around the central atom affect the molecule shape, how do you think this will affect the interactions between two molecules called intermolecular interactions?

Guidelines for Drawing Lewis Structures STEP 1: Determine the total number of valence electrons for the molecule. STEP 2: Determine the skeletal structure (arrangement of atoms) of the compound. For simple compounds the singular atom will be in the center with the others arranged around it. Attach each bonded atom to the central atom with a pair of electrons. Subtract the number of electrons used from the total. STEP 3: STEP 4: Place remaining electrons as lone pairs to complete octets (2 for H atoms). STEP 5: Any extra pairs of electrons should be placed on the central atom. STEP 6: If octets are not complete, form a multiple bond by converting a lone pair to a bonding pair. 1. What did you notice about the shapes with and without the lone pairs? How do the lone pairs affect the final shape? 2. Knowing that the groups of electrons around the central atom affect the molecule shape, how do you think this will affect the interactions between two molecules, called intermolecular interactions?

Answer 1

ило е, 2. for a chemical geaction lé ceeus the reactivity and cuentation of a molecule are both important. The groups of electrons around the central alone can affect the molecular shape and then the cientation, hence affecting infermolecular interactions as some orientations are favoured for a geoetion and come are not for eg, for an 5N2 og eection backsidle attack of nucleophile u favored to this the backesde of substrate should be less hinduedly, oriented. Similarly, moleculee having love pains de multiple bonds are e-rich while these having lessen electron than seter are e-deficient. This e- nich molecules donalie e to - deficient molecules forming electrovalent interactions between them. If two molecules are é-deficient shaning of e cecure this forming covalent bonds. Dative interactions also oceny. In this way different- kinds of infer molecular interactions occur due to shaße of molecule and anangement of elections around the Central atom.