Question

1. What did you notice about the shapes with and without the lone pairs? how do the lone lairs affect the final shape?

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. STEP 3: Attach each bonded atom to the central atom with a pair of electrons. Subtract the number of electrons used from the total. 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

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