Atomic Models
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CHXI02:STRUCTURE OF ATOM

307102 The number of protons, neutrons and electrons in \(_{{\rm{71}}}^{{\rm{175}}}{\rm{Lu}}\), respectively, are:

1 \({\rm{104}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{71}}\)
2 \({\rm{71}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{104}}\)
3 \({\rm{175}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
4 \({\rm{71}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
NEET - 2020
CHXI02:STRUCTURE OF ATOM

307103 Assertion :
A few positively charged \(\alpha\) particles are deflected in Rutherford's experiments.
Reason :
Most of the space in the atom is empty.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307104 Rutherford’s experiment which establishes the nuclear atomic model of the atom, used a beam of

1 \(\beta {\rm{ - }}\) particles, which impinged on a metal foil and got absorbed
2 \({\rm{\gamma - }}\) particles which impinged on a metal foil and ejected electrons
3 \({\rm{\alpha - }}\) particles which impinged on a metal foil and got scattered
4 Helium atoms which impinged on a metal foil and got scattered
CHXI02:STRUCTURE OF ATOM

307105 Which of the following conclusions could not be derived from Rutherford’s \({\rm{\alpha }}\)-particle scattering experiment?

1 Most of the space in the atom is empty.
2 The radius of the atom is about \({\rm{1}}{{\rm{0}}^{{\rm{ - 10}}}}{\rm{m}}\) while that of nucleus is \({\rm{1}}{{\rm{0}}^{{\rm{ - 15}}}}{\rm{m}}\).
3 Electrons move in a circular path of fixed energy called orbits.
4 Electrons and the nucleus are held together by electrostatic forces of attraction.
NCERT Exemplar
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CHXI02:STRUCTURE OF ATOM

307102 The number of protons, neutrons and electrons in \(_{{\rm{71}}}^{{\rm{175}}}{\rm{Lu}}\), respectively, are:

1 \({\rm{104}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{71}}\)
2 \({\rm{71}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{104}}\)
3 \({\rm{175}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
4 \({\rm{71}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
NEET - 2020
CHXI02:STRUCTURE OF ATOM

307103 Assertion :
A few positively charged \(\alpha\) particles are deflected in Rutherford's experiments.
Reason :
Most of the space in the atom is empty.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307104 Rutherford’s experiment which establishes the nuclear atomic model of the atom, used a beam of

1 \(\beta {\rm{ - }}\) particles, which impinged on a metal foil and got absorbed
2 \({\rm{\gamma - }}\) particles which impinged on a metal foil and ejected electrons
3 \({\rm{\alpha - }}\) particles which impinged on a metal foil and got scattered
4 Helium atoms which impinged on a metal foil and got scattered
CHXI02:STRUCTURE OF ATOM

307105 Which of the following conclusions could not be derived from Rutherford’s \({\rm{\alpha }}\)-particle scattering experiment?

1 Most of the space in the atom is empty.
2 The radius of the atom is about \({\rm{1}}{{\rm{0}}^{{\rm{ - 10}}}}{\rm{m}}\) while that of nucleus is \({\rm{1}}{{\rm{0}}^{{\rm{ - 15}}}}{\rm{m}}\).
3 Electrons move in a circular path of fixed energy called orbits.
4 Electrons and the nucleus are held together by electrostatic forces of attraction.
NCERT Exemplar
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CHXI02:STRUCTURE OF ATOM

307102 The number of protons, neutrons and electrons in \(_{{\rm{71}}}^{{\rm{175}}}{\rm{Lu}}\), respectively, are:

1 \({\rm{104}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{71}}\)
2 \({\rm{71}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{104}}\)
3 \({\rm{175}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
4 \({\rm{71}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
NEET - 2020
CHXI02:STRUCTURE OF ATOM

307103 Assertion :
A few positively charged \(\alpha\) particles are deflected in Rutherford's experiments.
Reason :
Most of the space in the atom is empty.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307104 Rutherford’s experiment which establishes the nuclear atomic model of the atom, used a beam of

1 \(\beta {\rm{ - }}\) particles, which impinged on a metal foil and got absorbed
2 \({\rm{\gamma - }}\) particles which impinged on a metal foil and ejected electrons
3 \({\rm{\alpha - }}\) particles which impinged on a metal foil and got scattered
4 Helium atoms which impinged on a metal foil and got scattered
CHXI02:STRUCTURE OF ATOM

307105 Which of the following conclusions could not be derived from Rutherford’s \({\rm{\alpha }}\)-particle scattering experiment?

1 Most of the space in the atom is empty.
2 The radius of the atom is about \({\rm{1}}{{\rm{0}}^{{\rm{ - 10}}}}{\rm{m}}\) while that of nucleus is \({\rm{1}}{{\rm{0}}^{{\rm{ - 15}}}}{\rm{m}}\).
3 Electrons move in a circular path of fixed energy called orbits.
4 Electrons and the nucleus are held together by electrostatic forces of attraction.
NCERT Exemplar
Join With Us for More Updates
CHXI02:STRUCTURE OF ATOM

307102 The number of protons, neutrons and electrons in \(_{{\rm{71}}}^{{\rm{175}}}{\rm{Lu}}\), respectively, are:

1 \({\rm{104}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{71}}\)
2 \({\rm{71}}\,{\rm{,71}}\,\,{\rm{and}}\,\,{\rm{104}}\)
3 \({\rm{175}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
4 \({\rm{71}}\,{\rm{,104}}\,\,{\rm{and}}\,\,{\rm{71}}\)
NEET - 2020
CHXI02:STRUCTURE OF ATOM

307103 Assertion :
A few positively charged \(\alpha\) particles are deflected in Rutherford's experiments.
Reason :
Most of the space in the atom is empty.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI02:STRUCTURE OF ATOM

307104 Rutherford’s experiment which establishes the nuclear atomic model of the atom, used a beam of

1 \(\beta {\rm{ - }}\) particles, which impinged on a metal foil and got absorbed
2 \({\rm{\gamma - }}\) particles which impinged on a metal foil and ejected electrons
3 \({\rm{\alpha - }}\) particles which impinged on a metal foil and got scattered
4 Helium atoms which impinged on a metal foil and got scattered
CHXI02:STRUCTURE OF ATOM

307105 Which of the following conclusions could not be derived from Rutherford’s \({\rm{\alpha }}\)-particle scattering experiment?

1 Most of the space in the atom is empty.
2 The radius of the atom is about \({\rm{1}}{{\rm{0}}^{{\rm{ - 10}}}}{\rm{m}}\) while that of nucleus is \({\rm{1}}{{\rm{0}}^{{\rm{ - 15}}}}{\rm{m}}\).
3 Electrons move in a circular path of fixed energy called orbits.
4 Electrons and the nucleus are held together by electrostatic forces of attraction.
NCERT Exemplar
For More Updates join with Us