In a radioactive decay, neither the atomic number nor the mass number changes. Which of the following would be emitted in the decay process?
Text Solution
Verified by ExpertsThe correct answer is:
D
The atomic number and mass number of a nucleus is defined as the number of protons and the sum of the number of protons and neutrons present in the nucleus, respectively. Since in the decay, neither the atomic number nor the mass number change, it cannot be a beta-decay (release of electron, proton or neutron). Hence, the particle emitted can only be a photon.
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