Two identical iron spheres have equal positive charges and the force between them when they are 1 m apart is 2 N. What percentage of the electrons has been removed from each sphere if each sphere has 1 mole (6 × 10^23) of iron atoms? (ke = 8.99 × 10^9 N/m2/C2, the atomic number of iron is 26, and the electron charge is ?1.6 × 10^?19 C)
a. 0.001%
b. 0.000 002%
c. 1 × 10^?8 %
d. 6 × 10^?10 %
e. 6 × 10^?12 %
d
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