Which of the following conclusions could not be derived from Rutherford’s α -particle scattering experiment?

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Chemistry | Class 11 | Exercise 1 | NCERT | Structure of Atom

Which of the following conclusions could not be derived from Rutherford’s α -particle scattering experiment?

(i) Most of the space in the atom is empty.

(ii) The radius of the atom is about 10–10 m while that of a nucleus is 10–15 m.

(iii) Electrons move in a circular path of fixed energy called orbits.

(iv) Electrons and the nucleus are held together by electrostatic forces of attraction.

Correct Answer: (iii) Electrons move in a circular path of fixed energy called orbits

Explanation: The conclusion of Rutherford’s α -particle scattering experiment do not describe that the electrons move in a circular path of fixed energy called orbits.

i

Which of the following compounds has tetrahedral geometry? (a) $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{-2}$ (b) $\left[\mathrm{Pd}(\mathrm{CN})_{4}\right]^{2-}$ (c) $\left[\mathrm{PdCl}_{4}\right]^{2-}$ (d) $\left[\mathrm{NiCl}_{4}\right]^{2}$

Find the vector equation of the line passing through the point with position vector and parallel to the vector Deduce the Cartesian equations of the line.

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