Which of the following is true about the masses of subatomic particles?
A.
Electrons and protons have a similar mass.
B.
Protons and neutrons have a similar mass.
C.
All subatomic particles have approximately the same mass.
D.
Neutrons and electrons have a similar mass.

Question

Which of the following is true about the masses of subatomic particles?
  A. 
Electrons and protons have a similar mass.
  B. 
Protons and neutrons have a similar mass.
  C. 
All subatomic particles have approximately the same mass.
  D. 
Neutrons and electrons have a similar mass.

anonymous · Answer

c

anonymous · Answer

Mass of a proton 1.6726 X 10-24 Mass of a neutron 1.6749 X 10-24 Mass of an electron 9.108 X 10-28 (Source: http://chem.wisc.edu/deptfiles/genchem/sstutorial/Text4/Tx41/tx41.html ) Going to go with answer B.