Question

A) Which observation by Ernest Rutherford and his students refuted the plum pudding model? (1 point)
alpha particle deflection
alpha particle 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**. This deflection indicated that there was a concentrated positive charge in the atom, leading to the nuclear model of the atom.