Alkali metal
High Quality Content by WIKIPEDIA articles! The alkali metals are a series of chemical elements in the periodic table. In the modern IUPAC nomenclature, the alkali metals comprise the group 1 elements, along with hydrogen. The alkali metals are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).Hydrogen (H), although nominally also a member of group 1, rarely exhibits behavior comparable to the alkali metals. This group lies in the s-block of the periodic table; all alkali metals` outermost electrons lie in an s-orbital. The alkali metals provide one of the best examples of group trends in properties in the periodic table, with elements exhibiting well characterized homologous behavior. For instance,...
ISBN: 978-5-5109-9922-8