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CBSE Class 9 Answered

State the observations in alpha-particle scattering experiment which led Rutherford to make the following conclusions: (i)Most of the space in an atom is empty. (ii)Whole mass of an atom is concentrated in its centre. (iii) Centre is positively charged.
Asked by Topperlearning User | 14 Jul, 2014, 05:09: PM
answered-by-expert Expert Answer

(i)Most of the alpha particles passed through the gold foil without getting deflected.

(ii)Very few particles were deflected from their path by 180o indicating that the whole mass of the atom is present in its centre in a very small volume.

(iii)Few particles were deflected at small angles from their path and very few were deflected from their path by 180o indicating that the positive charge of the atom occupies very little space and is located at the centre.

Answered by | 14 Jul, 2014, 07:09: PM

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