<span>What is the edge length of a face-centered cubic unit cell made up of atoms having a radius of 125 pm? </span>393pm
12/51 x 100 = 23.53%
Answer: 23.53%
Both claims are false. In fact, 
and 
are one the multiplicative inverse of the other. This means, by definition of multiplicative inverse, that
So, it doesn't matter if is positive or negative: the multiplication of one number and its inverse will always be 1: for example,
Similarly, when you multiply two number, the sign of the product depends on the sign of the factors as follows:
So, the multiplication of two negative numbers is a positive number.
The answer would be 29,112. That would be including the subtracted contribution.
Area= length * width
Area= 5*4
Area= 20
I hope this helps!
~cupcake
