1. Electrons spinning around the nucleus of an atom cause the atom to a. be a tiny magnet.
b. have north and south poles.
c. have a magnetic field.
d. all of the above

answer is C

is the magnetic field

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.