Nitrogen Family: The elements Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb) and Bismuth (Bi) together constitute group 15 of the long form of Periodic table and are collectively known as members of nitrogen family. General Trends in Physical Properties of Nitrogen Family: (i) Electronic Configuration- The general outer electronic configuration of group 15 elements in ns2 np3 (n = 2 to 6) which shows that these elements have 5 electrons in the valence shell, two in s-orbital and three in p-orbital. Element / Symbol Atomic Number Electronic Configuration Nitrogen, N 7 1s2, 2s2 2p3 or  2s2 2p3 Phosphorous, P 15 1s2, 2s2 2p6, 3s2 3p3 or  … Continue reading Group 15 Elements (Nitrogen Family)