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There are 5 Elements in the 15th Group of Periodic Table. They are:

Element                                                Symbol

Nitrogen                                                N

Phosphorous                                        P
Arsenic                                                 As
Antimony                                              Sb
Bismuth                                                Bs

Among all these elements the distinct Non-metal elements are Nitrogen (N) and Phosphorous (P) and the distinct Metal element is Bismuth (Bs) only.

Metallic Character decreases the group.