7. what properties did rutherford use in the design of the gold foil experiment?\no alpha particles positive…

7. what properties did rutherford use in the design of the gold foil experiment?\no alpha particles positive charge and electrons negative charge\no alpha particles negative charge and gold foils positive charge\no alpha particles negative charge and random distribution of protons\no positively charged electrons distributed in a uniform negative charge
Answer
Brief Explanations:
Rutherford knew alpha - particles are positively charged. He used this property along with the fact that electrons have a negative charge to design the experiment. The interaction between the positively - charged alpha particles and the negatively - charged electrons (and the overall structure of the atom) was of interest. The other options have incorrect charge assignments for alpha particles or incorrect models of atomic structure.
Answer:
alpha particle's positive charge and electron's negative charge