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Questions
No.22

Answer 1

It deflected towards both magnetic field and negative charged particle thus he concluded that alpha is a positive charged particle...

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Answer 2

OBSERVATIONS:

(i) Most of the $\alpha$- particles passed through the gold foil undeflected.

(ii) A small fraction of $\alpha$- particles was deflected by small angles.

(iii) A very few $\alpha$- particles bounced back, that is, were deflected by nearly 180°.

CONCLUSIONS:

(i) Most of the space inside the atom is empty because most of the $\alpha$-particles passed through the gold foil without getting deflected.

(ii) Very few particles were deflected from their path, indicating that the positive charge of the atom occupies very little space in an atom.

(iii) A very small fraction of $\alpha$-particles were deflected by very large angles, indicating that all the positive charge and mass of the gold atom were concentrated in a very small volume within the atom.

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