CHEMICAL BONDINGS
" The attractive force which holds various constituents together in different chemical species is called Chemical bonding " Types of Chemical bonding - 1. Ionic Bond - The bond formed as a result of electrostatic attraction between the positive(+ve) and negative(-ve) ions is called electrovalent or Ionic Bond. 2. Covalent Bond - One or more pairs of electrons are shared by the two atoms. Langmuir introduced the term of covalent bond in 1919. These are two type of covalent bond is following: • Polar Covalent Bond - The bonding electrons shared unequally between two atoms partial charges on atoms. Example: H2O, HCl, PCl3, PCl5. (The central atom attracts molecules more strongly than surrounding atoms) • Non-Polar Covalent Bond - The bonding electrons shared equally between two atoms. No charges on atoms. Example: Cl2, H2, O2, N2, F2 • Co-ordinate Bond - It is also known as Dative Bond. The...