Rutherford’s α–particle scattering experiment showed that
  1. electrons have a negative charge
  2. the mass and positive charge of the atom is concentrated in the nucleus
  3. neutron exists in the nucleus
  4. most of the space in the atom is empty Which of the above statements are correct?
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (iv)
(d) (iii) and (iv)

AcademicChemistryNCERTClass 9

Correct Answer: (b) (ii) and (iv)

Explanation: An atom consists of a positively charged, dense and very small nucleus which have all the protons and neutrons. The space is empty because alpha particles pass straight through the gold foil without any deflection.  

Updated on 10-Oct-2022 13:32:55