Question

who imagined the presence of neutron in the atomic neuclear​

Answer 1

Answer:

Chadwick repeated their experiments but with the goal of looking for a neutral particle -- one with the same mass as a proton, but with zero charge. His experiments were successful. He was able to determine that the neutron did exist and that its mass was about 0.1 percent more than the proton's.

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Answer 2

Answer:

it was first imagined by Neils Bhor but then Rutherford continued it's theory and then it was finally completed by jj thomson