Question 15 There is a distance of 3.0 x10-1 meters between two metalic spheres. Each sphere has a charge of +2.0 x10-6 coulombs What is the magnitude of the electrostatic force on the two spheres?
A) 1.2 x 10-12 N
B) 4.4 x 10-11 N
C) 1.2 x 10-1N
D) 4.0 x10-11

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

This did i unseated, sorry