Give Reasons Behind Each Answer 1 A Cubic Closest Packed Structure Has The Third

Give reasons behind each answer

1. A cubic closest-packed structure has the third layer of atoms sitting over the uncovered holes of the first layer of atoms?

True/False

2. The coordination number for a simple cubic structure is:

A.6

B.12

C.8

3. When there is no energy gap between the conduction band and the valence band, the substance is most likely a:

A.insulator

B.semiconductor

C.conductor

4. Substance A forms dipole-dipole attractions, substance B form dipersion forces. Which will have a higher boiling point?

A.B

B.A

C.both the same

5. A substance has melting point of 14.0oC. At 10oC the substance will be in:

A.liquid state

B.gaseous state

C.solid state

 

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