a. The unit cell is the smallest group of atom which have overall symmetry of a crystal, and from which is the entire letters can be buled built up by repetition in 3 dimensions.
b. The volume(v) of the unit cell is equal to the cell edge length (a)cubed.
c. density of polonium is 9.32g/cm3.
Explanation:
By losing or gaining electrons from its outermost orbit
im not sure which one to answer, and i can hardly see the text.
C because
Explanation Plato
I think its A.
if one force cannot overcome the other, the object remains stationary.
