The following pictures show the electron population of the bands of MO energy levels for four different materials.
-Which of these materials has an electrical conductivity that remains constant with an increase in temperature?
A)material (1)
B)material (2)
C)material (3)
D)material (4)

Question

The following pictures show the electron population of the bands of MO energy levels for four different materials. 
-Which of these materials has an electrical conductivity that remains constant with an increase in temperature?
A)material (1) 
B)material (2) 
C)material (3) 
D)material (4)

Quizplus · Accepted Answer

The Answer of The following pictures show the electron population of the bands of MO energy levels for four different materials. 
-Which of these materials has an electrical conductivity that remains constant with an increase in temperature?
A)material (1) 
B)material (2) 
C)material (3) 
D)material (4)

The Following Pictures Show the Electron Population of the Bands