Chapter 12

Question 1

Crystalline Solids

Answer 1

Highly regular morphology, order at the atomic level, atoms arranged in a very regular, highly ordered pattern

Question 2

Amorphous solid

Answer 2

Characterized by a distinct lack of order in the arrangement of atoms, thought as frozen liquids, typically brittle and optically transparent

Question 3

Metallic solid

Answer 3

Contains metals, solid held together by metallic bonds, conduct electricity, strong but not brittle, malleable and ductile, have variable melting point

Question 4

Ionic solid

Answer 4

Contains metal and nonmetal, solid held together by electrostatics, insulators but (l) molten or (aq) are conductors, hard but brittle, high MP and BP

Question 5

Covalent-Network solid

Answer 5

Contains nonmetals or metalloids, insulators or semiconductors, very hard, very high MP or BP

Question 6

Molecular solid

Answer 6

Contains nonmetals, discrete molecules held together in the solids phase by weak IMFs, soft, poor or no conductivity… unless an acid or base (aq), low MP and BP