found: Work cat.: 2003010232: Sauders, N. Nitrogen and the elements of group 15, 2003.
found: Britannica online, May 2, 2003(Nitrogen group element; Group Va)
found: Oxford dict. sci.(Group 15 elements; a group of elements in the periodic table: nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi), which all have outer electronic configurations ns²np³ with no partly filled inner levels; formerly, classified in group V, which consists of two subgroups: group VB and group VA)
found: Webster's new world dict.:under Periodic table of the elements (15; VB, VA)
found: Random House dict.(periodic table: shows 5a for N, P, As, Sb, and B)