... the radius the stronger it is. * Also, the number of electrons that each of the atom donates. The more electrons donated then the stronger the bond. Metallic Bonding http://hrsbstaff.ednet.ns.ca/dawsonrj/11%20Chem/Chapter%20notes/Chapter%208%20notes_files/image001.jpg Metals that consist of metal cations and they have a balancing number of free electrons also have unit cell structures. These types of metals are known to be crystalline structures which can also be described as either: * Body Centred Cubic (BCC) * Hexagonal Close Packed (HPC) * Face centred Cubic (FCC) http://ece-www.colorado.edu/~bart/book/bcc.gif http://ece-www.colorado.edu/~bart/book/fcc.gif http://www.everyscience.com/Chemistry/Inorganic/Ionic_Solids/.images/hcp_unitcell.gif Properties of metals. * Electrical Conductivity * High Metal and boiling points * Lustre * Thermal Conductivity * Strength * Malleability Copper Copper is lightweight and soft metal that has a reddish tint in colour. Copper and its physical properties. Melting Point: 1084.62?c Boiling Point: 2562?c Young's Modulus: 110-128 GPa Density: 8.96g cm-³ Mohs Hardness: 3.0 Vickers Hardness: 369 Mpa Brinell Hardness: 874 Mpa Heat Capacity: 25ºC Electrical resistivity: 200ºC Thermal Conductivity: 300K Atomic Radius: 135 Pico metres (Wikipedia) Melting and Boiling Points: Copper has a high melting ...

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