Metals and Non-metals (Covalent bond v/s Ionic bond)

Describe the differences between elements, mixtures and compounds, and between metals and non-metals
Describe an alloy, such as brass, as a mixture of a metal with other elements
Describe the formation of ionic bonds between metallic and non-metallic elements.
Describe the lattice structure of ionic compounds as a regular arrangement of alternative positive and negative ions.
Describe the formation of single covalent bonds in H2, Cl2, H2O, CH4, NH3 and HCl as the sharing of pairs of electrons leading to the noble gas configuration.
Describe the electron arrangement in more complex covalent molecules such as N2, C2H4, CH3OH and CO2.
Describe the macromolecular structure of silicon(IV) oxide (Silicon dioxide)
Describe the similarity in properties between diamond and silicon (IV) oxide, related to their structures.
Describe the differences in volatility, solubility, electrical conductivity between ionic and covalent compounds.
Explain the differences in melting point and boiling point of ionic and covalent compounds in terms of attractive forces.