Question

The correct statements among the following is

• A. Thomson was not aware of the knowledge of the protons and neutrons when he proposed plum pudding model
• B. The mass of the atom is uniformly distributed throughout the atom according to plum pudding model
• C. Rutherford was not aware of the knowledge of protons and neutrons when he proposed his model of atom
• D. The mass of the atom is not uniformly distributed throughout the atom according to Rutherford model

Answer 1

Answer: (A), (B), (C), (D)

The mass of the atom is not uniformly distributed throughout the atom according to Rutherford model

A) Thomson plum pudding model was proposed in 1904. Nucleus was discovered in 1909.
B) Thomson model states the electrons are embeded in a positive charged matrix like plum in pudding.
C) He discovered the proton in 1917 but the model was proposed in 1909.
D) According the Rutherford model, most of the space of the atom is empty and the mass is concentrated at the centre