Main-group element Main-group element In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements. The main group includes the elements (except hydrogen, which is sometimes not included) in groups 1 and 2 (s-block), and groups 13 to 18 (p-block). The s-block elements are primarily characterised by one main oxidation state, and the p-block elements, when they have multiple oxidation states, often have common oxidation states separated by two units. Main-group elements (with some of the
All That Is Solid Melts into Air his map together, he had tried to keep my book in mind." All That Is Solid Melts into Air All That Is Solid Melts into Air is an academic text written by Marshall Berman between 1971 and 1981, and published in New York City in 1982. The book examines social and economic modernization and its conflicting relationship with modernism. The title of the book is taken from the "Communist Manifesto" by Karl Marx and Friedrich Engels. Berman uses Goethe's "Faust" as a literary interpretation of modernization, through the processes of dreaming, loving and developing. In the second section he uses