Which scientist was the first to conclude through experimentation that atoms have positive charges in their nuclei?
1 Answer
Jun 1, 2016
Probably Thomson or Rutherford, but the sign of the charge assigned to the nuclear protons is arbitrary.
Explanation:
See here and here for further details, The important thing to note that electrons and protons have OPPOSITE electric charges. That protons are positive and electrons are negative is purely a matter of historical accident.