Learning objectives
Predict the type of bonding between two elements from their electronegativity difference and their positions in the periodic table, and explain that bonding lies on a continuum rather than in discrete categories
Explain how the lattice energy of an ionic solid depends on ionic charge and ionic radius through Coulomb's law, and use this to rank melting points of ionic compounds
Describe metallic bonding as cations in a delocalized sea of valence electrons, and explain metallic conductivity, malleability and the effects of interstitial and substitutional alloying
Classify a solid as ionic, molecular, covalent network or metallic from its properties, and explain those properties using a particulate representation of the solid
Relate bond length and bond energy to bond order and to the radii of the bonded atoms, and explain why a shorter bond is generally a stronger bond
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