Reciprocity is a. when two or more people or groups oppose each other to achieve a goal that only one can attain. b. the idea th
at if you do something for someone then that person owes you something in return. c. the deliberate attempt to control a person by force. d. the state of balance between conflict and cooperation.
Reciprocity the idea that if you do something for someone then that person owes you something in return. Correct answer: B
The term reciprocity used in sociology denotes the expectation that people will respond to each other in similar ways and that the relationship is not one-way.
Because the mass contributed by electrons is dwarfed by the nuclear contribution. There exists three orders of magnitude difference. Electronic mass can be ignored to a first approximation.