Page 5 - Lecture 3
P. 5

Writing Lewis Structures
  (Covalent Molecules)

   PCl3                        1. Sum the valence
                                   electrons from all
Keep track of the                  atoms, taking into
electrons:                         account overall
5 + 3(7) = 26                      charge.

© 2022 Pearson Education Ltd.  • If it is an anion, add one
                                 electron for each
                                 negative charge.

                               • If it is a cation, subtract
                                 one electron for each
                                 positive charge.

                                                                                    Basic Concepts
                                                                                      of Chemical
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