State that a covalent bond is formed when a pair of electrons is shared between two atoms leading to noble gas electronic configurationsDescribe the formation of covalent bonds in simple molecules, including H2, Cl2, H2O, CH4, NH3, and HCl. Use dot-and-cross diagrams to show the electronic configurations in these and similar moleculesDescribe in terms of structure and bonding the properties of simple molecular compounds: low melting points and boiling points, poor electrical conductivityDescribe the formation of covalent bonds in simple molecules, including CH3OH, C2H4, O2, CO2, and N2. Use dot-and-cross diagrams to show the electronic configurations in these and similar moleculesExplain in terms of structure and bonding the properties of simple molecular compounds: low melting points and boiling points in terms of weak intermolecular forces (specific types of intermolecular forces are not required), poor electrical conductivity