Atypical cell phone charger is rated to transfer a maximum of 1.0 coulomb of charge per second. calculate the maximum number of electrons that can be transferred by this charger in 1.0 hour.

1 C in 1 second, in 1 hour there is 60*60=3600 s, as a result in one hour there is 3600 coulombs of charge.
Charge of electron= -(1.6*10^-19)
Number of electrons= 3600/1.6*10^-19=2.25*10^22 electrons

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 -