Question

write the gold foil experiment of Rutherford
class 9
science
chapter Structure of atom

Answer 1

here is you answer hope it helps you if it helps you then pls mark it brainliest

Answer 2

Ernest Rutherford was interested in knowing

how the electrons are arranged within an

atom. Rutherford designed an experiment for

this. In this experiment, fast moving alpha

(α)-particles were made to fall on a thin

gold foil.

• He selected a gold foil because he wanted

as thin a layer as possible. This gold foil

was about 1000 atoms thick.

• α-particles are doubly-charged helium

ions. Since they have a mass of 4 u, the

fast-moving α-particles have a

considerable amount of energy.

• It was expected that α-particles would be

deflected by the sub-atomic particles in

the gold atoms. Since the α-particles were

much heavier than the protons, he did

not expect to see large deflections.