Question

Question(20)
Rutherford's experiment, which established the nuclear model of the atom, used a beam of:​

Answer 1

Answer:

Rutherford's gold foil experiment directed a beam of alpha particles at a thin sheet of gold foil and helped to prove the existence of positively charged particles.

Observation I: Most of the fast-moving α- particles passed straight through the gold foil

Observation II: Some of the α- particles were deflected by the foil by small angles

Observation III: One out of every 12000 particles appeared to rebound

Answer 2

Answer:

Rutherford's experiment, which established the nuclear model of the atom, used a beam of helium nuclei ( α−particles), which impinged on a gold foil ( of thickness 100 nm) and got scattered. The gold foil was surrounded by ZnS fluorescent screen. Wherever alpha particles strike the screen, a tiny flash of light was produced at that point.

α− particles are called a helium nucleus.

Explanation:

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