Logic learning 02

The elements of this nitrogen group is collectively called  PNICOGENS and their compounds are PNICONIDES.                                  Nitrogen is the most aboundant gas in atmosphere.                                                               Phosphorus is most reactive elements in these group and its colour is yellow ,these form is more reactive form of phosphorus. Which always kept under the water.                  General electronic configuration :- ns2,np3.                In these group the elements have np3 which is outermost orbit and have exactly halffilled so these elements have fairly stability and hence these are inert elements. Eg . N is b...