Bonding Flashcards 0.0 / 5 ? ChemistryBonding & shapesASAQA Created by: cosminliveCreated on: 14-05-17 14:13 What is Ionic Bonding? When ions of opposite charges join together electrostatically 1 of 12 What is the structure of ionic compounds? (Lattice, Arrangement etc.) Giant Ionic Lattice, arranged with oppositely charged ions that are electrostatically charged. 2 of 12 Electrical Conductivity of Ionic Compounds Conduct electricity when molten or dissolved, as the ions are free to move and carry a current. 3 of 12 Why do they have high melting points? Held Electrostatically, and this requires lots of energy to overcome 4 of 12 What increases the strength of the ionic bonding? The charge on the ion: Higher - Stronger Attraction. Size of ion: Smaller - Stronger Attraction. 5 of 12 Molecules have _______ bonds Covalent 6 of 12 Why do simple molecules have low mpts/bpts? Weak intermolecular forces (usually vdw's) 7 of 12 Why does diamond have a high mp? It has a giant covalent bonds, lots of energy is needed to break carbon-carbon bonds. 8 of 12 Why can graphite conduct electricity? The delocalised electrons are free to ove and carry a charge. 9 of 12 What is the structure of Metals? Giant Metallic lattice, with positive ions surrounded by delocalised electrons 10 of 12 What are two factors that increase the strength of a metallic bond? Smalled sized ion and bigger charge on ion 11 of 12 How is the vdw force increased in strength? Larger Molecules have larger electron clouds, meaning stronger van der waals forces 12 of 12
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