Question

On February 27, 1932 James Chadwick published his conclusive findings about the elusive neutron. Below is a representation of the experimental setup he used. What are the missing parts of the puzzle?

• A. i) alpha, ii) proton, iii) neutron
• B. i) neutron, ii) alpha, iii) proton
• C. i) proton, ii) neutron, iii) alpha
• D. i) alpha, ii) neutron, iii) proton

Answer 1

The correct option is D

i) alpha, ii) neutron, iii) proton

The radioactive Polonium emits alpha rays which knock off some heavy, neutral particles, neutrons, from the Beryllium. Now, these particles in turn knock off protons from paraffin wax.