The of sodium (Na) is less than that of chlorine (Cl) (circle one): (2) [electro

Question

The of sodium (Na) is less than that of chlorine (Cl) (circle one): (2) [electron affinity, ionization energy; atomic number, all of these] e. f. The type of bonding in silicon and diamond is primarily (circle one): 2) g. A weakly bonded ionic compound will have a large Young's modulus (circle one): (2) h. The Young's modulus of a ceramic generallyeeture increases (circle one): (2) ionic; covalent; metallic] [true; false increases; decreases] improve; degrade; either-it depends] What is the difference between atomic structure and crystal structure?) i. Grain boundaries _ the properties of ceramics (circle one): (2) k. Why is quantum mechanics important for the properties of ceramic materials? (3) L. Name 3 of the 7 crystal systems: (3) m. Name 3 allotropes of carbon: (3)

Explanation / Answer

e) all the properties, EA, Ionization energy and atomic number of sodium are less than chlorine.

f) covalent bond is the major type of bond in silicon and diamond.

g) false, a high ionic bond has a higher elastic modulus

h) Youngs modulus decreases with the increase in temperature

i) grain boundaries improve the properties of ceramics as they restrict the movement of dislocations.

Pls post 4 sub-parts as per guidelines.

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