A university student in Northern England is the first to fall prey to the Student Slasher in this intricately constructed, stand-alone novel of suspense and revenge, originally published in the U.K. as Caedmon's Song.
Nitrogen is essential to life on Earth. It is a component of all proteins and it can be found in all living systems. Nitrogen compounds are present in organic materials, foods, fertilizers, explosives and poisons. Nitrogen is crucial to life, but in excess it can also be harmful to the environment.
Elements for Kids. Nitrogen. Nitrogen is the first element in column 15 of the periodic table. It is part of the group of other nonmetal elements. Nitrogen atoms have seven electrons and 7 protons with five electrons in the outer shell. Nitrogen plays an important role in the life of plants and animals on Earth through the nitrogen cycle.