CHEM 202 Quiz: Solid classification lattice and chemical types 38

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6 Feb 2019
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Lattice arrangement of crystal the chemical unit within a ions for molecule compounds for networks a cell unit is individual compounds atoms or the simplest repeat pattern of lattice ions. 1 molecular compounds only have intermolecular forces for holding solid phase together includes group 18 monoatomics where the only intermolecular force is dispersion and usually forms fee lattice. Helium has ionic network compound network of cations and anions the weakest. I held together by ionic bondings in three dimensions p the unit cell must have the same ratio of cations and anions as the ratio in the ionic formula sci a u c l u. 3d networks chemical bonding extends in all three dimensions throughout the network two atoms. 2b networks chemical bonding gives sheets of atoms thick stacked on top of each other one or and held together by intermolecular forces.