A row of 25000 identical atoms touching each other has a length of 5.0 μm5.0\ \mu\mathrm{m}5.0 μm. A model shows one of these atoms with a diameter of 4.0 cm.
What is the magnification of the model?
2.0×1052.0\times10^52.0×105
2.0×1082.0\times10^82.0×108
5.0×10−95.0\times10^{-9}5.0×10−9
8.0×1038.0\times10^38.0×103