This positively charged nuclear particle has almost 2,000 times the mass of the negatively charged electron
Whereas 
electrons can be said to be 'fundamental' (or indivisible) particles in their ... As 
protons have a positive electric charge, equal and opposite to that held by 
electrons, ... almost 2,000 times as much as an electron, the mass of the orbiting 
electron... [DOC] [TLE] Free Flashcards about PHYSICS - StudyStack [PAR] THIS POSITIVELY CHARGED NUCLEAR PARTICLE HAS ALMOST 2,000 TIMES 
THE MASS OF THE NEGATIVELY CHARGED ELECTRON, PROTON.