Particles used in the Rutherford's scattering | vedclass

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(A) The particles used in Rutherford's scattering experiment (also known as the Geiger-Marsden experiment) are $\alpha$-particles.An $\alpha$-particle

Vedclass · Accepted Answer

had atomic number $2$ and were fully ionised

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(A) The particles used in Rutherford's scattering experiment (also known as the Geiger-Marsden experiment) are $\alpha$-particles.An $\alpha$-particle is a helium nucleus,represented as ${ }_2^4 He$.It consists of $2$ protons and $2$ neutrons,meaning its atomic number is $2$ and its mass number is $4$.Since it is a nucleus,it is fully ionised (it has no electrons),resulting in a net positive charge of $+2e$.Therefore,the correct option is $A$.

Particles used in the Rutherford's scattering experiment to deduce the structure of atoms:

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