An atom has no electrical charge because .a. the number of protons is equal to the number of neutrons. b. the number of neutrons is equal to the number of electrons. c. the number of protons is equal to the number of electrons. d. all of the above

An atom has no electrical charge simply because the number of protons is equal to the number of electrons. However, if the atom gains an extra electron, it becomes negatively charged. If it loses and electron, then the atom becomes positively charged.

That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained