Class 11th science chemistry (the p-block elements)
In the periodic table, there are six groups of p-block elements from 13 to 18 with an electronic configuration ns 2 Np 1–6 . It has all types of elements such as metalloids, non-metal, and metal. Their chemical and physical properties are highly influenced by the difference between the inner core of their electronic configuration . The lighter elements of the group have a quite stable group oxidation state. Heavier elements have more stable lower oxidation states. The heavier elements form dπ–dπ or dπ–pπ bonds whereas the lighter elements form pπ–pπ bonds. Electron Deficiency in Born Compounds An example of typical non-metal is boron. Covalent bond formation by using four orbitals (2px, 2s, 2py, 2pz) with the convenience of 3 valence electrons 2s 2 2p 1 leads to the electron deficiency in boron compounds. Due to this deficiency, they are a good electron acceptor and therefore behave as Lewis acids. Boranes are formed when boron and dihydrogen form a covalen...