The electron emitted in β-radiation originates from where?
Correct answer: C. The decay of a neutron in a nuclei
- A. Inner orbits of atoms
- B. Free electrons existing in nuclei
- C. The decay of a neutron in a nuclei
- D. Photon escaping from a nuclei
Explanation
Beta radiation is a type of ionizing radiation emitted by certain radioactive nuclei. It consists of high-energy electrons (beta particles) that are emitted from the nucleus during a process called beta decay. The electron emitted in B-radiation does not originate from a specific location within the atom. Instead, it is created during the decay process when a neutron is converted into a proton and an electron. The electron is then ejected from the nucleus with high kinetic energy, making it a beta particle For Example:
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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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