A negative charge is placed between a pair of oppositely charged plates, as shown. Which best describes the result of moving the charge to the point marked X?

A. Its electric potential energy increases because it has the same electric field.

B. Its electric potential energy increases because the electric field increases.

C. Its electric potential energy stays the same because the electric field increases.

D. Its electric potential energy stays the same because it has the same electric potential.

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 -

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

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