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The energy gap between the conduction band and the valence band is large for Que

ID: 1007523 • Letter: T

Question

The energy gap between the conduction band and the valence band is large for

Question 38 options:

superconductors.                                                                                                                                                                                                                                                 

A metal such as chromium in the face-centered cubic lattice will have ________________ atom(s) per unit cell.

Question 34 options:

1) conductors. 2) insulators. 3) semiconductors. 4) alloys. 5)

superconductors.                                                                                                                                                                                                                                                 

Explanation / Answer

Solution :-

1) The energy gap between the conduction band and the valence band is large for Insulators

The insulators is the material in which the eneergy gap is is very large therefore it do not transfer electricity or heat.

2) A metal such as chromium in the face-centered cubic lattice will have ________________ atom(s) per unit cell

Answer = 4

because [( 18 × 8 from the corners) + (12 × 6 from the faces)] = 4

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