question_answer 34)

    Which one of the following elements exhibit maximum number of valence electrons? (a) Na                                    (b) Al                                     (c) Si                                      (d) P

Answer:

                  (d)Thus, Na (group 1) has one, Al (group 13) has three (13-10), Si (group 14) has four (14-10) and P (group 15) has five (15-10) valence, electrons. Therefore, P has maximum number of valence electrons i.e., 5 (maximum among the given).