CHEM101 Lecture Notes - Covalent Bond, Chemical Polarity, Hydrogen
Document Summary
Covalent bonding is a type of chemical bonding in which two atoms share one or more pairs of electrons to form a stable molecule. Covalent bonds can occur between atoms of the same element (as in h2 or o2) or between different elements (as in h2o or ch4). In a covalent bond, the atoms involved share electrons to achieve a stable electron con guration, usually the noble gas con guration. The shared electrons are typically represented by a dash (-) or a pair of dots (:) between the atoms. Covalent bonds can be divided into two categories: nonpolar covalent bonds and polar covalent links. As opposed to a polar covalent bond, which results in a partial positive charge on one atom and a partial negative charge on the other, a nonpolar covalent bond evenly distributes the electrons between the two atoms.
