Which radioactive particle was used by Geiger and Marsden in their experiments with thin metal foils?
A. alpha, α
B. beta, β
C. gamma, γ
D. lambda, λ
Answer:A
Which radioactive particle was used by Geiger and Marsden in their experiments with thin metal foils?
A. alpha, α B. beta, β C. gamma, γ D. lambda, λ