1. Why did Rutherford use alpha-particles in his experiment, why not any other radiations, like beta, gamma, etc. ?
2. Why couldn't Bohr's atomic model explain the spectra of atoms or ios having two or more electrons?

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Solution

Alpha particles have two positively charged ions that according to Rutherford will provide the maximum amount of deflection.

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1. Why did Rutherford use alpha-particles in his experiment, why not any other radiations, like beta, gamma, etc. ?2. Why couldn't Bohr's atomic model explain the spectra of atoms or ios having two or more electrons?

Alpha particles have two positively charged ions that according to Rutherford will provide the maximum amount of deflection.

1. Why did Rutherford use alpha-particles in his experiment, why not any other radiations, like beta, gamma, etc. ?
2. Why couldn't Bohr's atomic model explain the spectra of atoms or ios having two or more electrons?