### Compare the crystalline state in metals and polymers

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##### Reference no: EM13543339

1.For cubic crystals, as values of the planar indices h, k, and l increase, does the distance between adjacent and parallel planes (i.e., the interplanar spacing) increase or decrease? Why?

2.Compare the crystalline state in metals and polymers. (b) Compare the noncrystalline state as it applies to polymers and ceramic glasses

3.Offer an explanation as to why covalently bonded materials are generally less dense than ionically or metallically bonded ones.

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