A NEUTRON was discovered by:
Correct answer: B. Chadwick
- A. J.J Thomson
- B. Chadwick
- C. Rutherford
- D. Neil Bohr
Explanation
In 1932, James Chadwick conducted experiments that proved the existence of the neutron, a neutral particle within the atomic nucleus. This discovery was crucial for the modern understanding of nuclear physics.
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Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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