Nitrogen has 5 valence electrons.
the molecules in a liquid are loosely arranged, and are arranged randomly
Moving down in a group, the electronegativity decreases due to an increase in the distance between the nucleus and the valence electron shell, thereby decreasing the attraction, making the atom have less of an attraction for electrons or protons.
Products and reactants are substances. The first one (the products) are obtained when the reactants are changed. The process of change of one element into another is called chemical reaction. The reactants are transformed during the chemical reaction into products. Limiting reactant is the reactant which defines the amount of product as a a result of the reaction. This reactant is also called limiting reagent.