Pole
Explanation:
A magnetic pole is the point on a magnet where a magnet effect is strongest. Around a magnet, there are magnetic fields. 
- The magnetic fields are force fields that leaves the north poles and enters through the south. 
- The pole is where magnetic effects are the strongest. 
- It is around the pole that the strongest magnetic effect on a magnet or magnetic material is felt. 
- The strength of magnetic fields are strongest at the poles. 
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A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. 
A mixture can usually be separated back into its original components. Some examples of mixtures are a tossed salad, salt water and a mixed bag of M&M's candy.
 
        
             
        
        
        
Explanation:
The given data is as follows.
       Mass = 27.9 g/mol
As we know that according to Avogadro's number there are  atom present in 1 mole. Therefore, weight of 1 atom will be as follows.
 atom present in 1 mole. Therefore, weight of 1 atom will be as follows.
             1 atoms weight =  
     
In a diamond cubic cell, the number of atoms are 8. So, n = 8 for diamond cubic cell.
Therefore, total weight of atoms in a unit cell will be as follows.
             = 
             = 
Now, we will calculate the volume of a lattice with lattice constant 'a' (cubic diamond) as follows.
                    = 
                    = 
                    =  
 
Formula to calculate density of diamond cell is as follows.
                Density = 
                              = 
                             = 2918.1 
or,                         = 0.0029 g/cc       (as 1  )
)
Thus, we can conclude that density of given semiconductor in grams/cc is 0.0029 g/cc.