Science has shown that smoking causes cancer. Among these is an example of how society responded to this information. Which one
is this? A. Cigarette smoking may be on the rise in the general public.
B. Forty-seven U.S. states now restrict smoking in public areas.
C. Cigarette smoking remains widespread.
D. Tobacco advertisers are putting out new brands of cigarettes.
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.