Question

Which observation by Ernest Rutherford and his students refuted the plum pudding model?(1 point) Responses alpha particle attraction alpha particle attraction alpha particle deflection alpha particle deflection electron attraction electron attraction electron deflection

Answer 1

The observation by Ernest Rutherford and his students that refuted the plum pudding model was **alpha particle deflection**. Their experiments, particularly the gold foil experiment, demonstrated that alpha particles were deflected at large angles, indicating the presence of a concentrated positive charge (the nucleus) rather than a uniform distribution of positive charge as proposed by the plum pudding model.