S block elements (Alkali metals)

The document discusses the s-block elements, specifically focusing on the alkali metals. It provides an introduction and table of contents. It then discusses the electronic configuration of s-block elements and lists the alkali metals and alkaline earth metals. The next sections provide details on the characteristics properties of alkali metals, including their electronic configuration, atomic and ionic radii, ionization enthalpy, and flame coloration. Further sections describe the atomic and physical properties and chemical properties of alkali metals, including their reactivity towards air, water, hydrogen, and halogens. Applications of some alkali metals are also mentioned. References are listed at the end.