Scientists observed that atoms exhibited both positive and negative charges, leading them to infer the presence of positively charged protons and negatively charged electrons within atoms.
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The mass of an electron is considered negligible, and its charge is minus one (-1).
The charge of a proton is represented as plus one (+1).
Electrons are represented as ‘e-‘ and protons as ‘p+’.
The mass of a proton is approximately 2000 times that of an electron.