Question

how was it proved that the whole mass of atom is located in the centre?​

Answer 1

Answer:

The proof that the bulk of the atom was at the centre was the Rutherford model, which resulted by shooting a ray of beta particles (electrons) into a gold leaf, and most of these went straight through.

Answer 2

Answer:

Rutherford s Gold foil experiment

Explanation:

Rutherford arranged an experiment in which he passed ALPHA RAYS through a GOLD FOIL.

He observed that most of the particles passed through the foil while some got deflected.

By this he concluded that the deflection was caused by rays that hit the centre of the atom.

Hence it was proved that whole mass of the atom is located at the centre.

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