Question

Explain in brief – Lod Rutherford’s experiment which led to the discovery of the atomic nucleus.

Answer 1

Discovery of – Atomic nucleus:

• Discovery – Study of the atomic model leading to the discovery of – atomic nucleus.

Experiment:

• Rutherford projected alpha particles towards a thin gold foil, – in the path of the rays.
• He saw that most of the alpha particles went straight through the foil, – but some were deflected slightly & some by large angles.

Conclusion:

• An atom, on the whole, is relatively empty but consists of a – concentrated positive mass in the centre, which leads to the deflection of the alpha particles.
• Thus the discovery of a central positive region – atomic nucleus was initiated.