In alpha emission, the ratio of decrease in proton number to the decrease in neutron number is:
Correct answer: B. 1:1
- A. 2:1
- B. 1:1
- C. 1:2
- D. 4:1
Explanation
In alpha decay, a nucleus emits an alpha particle, which consists of two protons and two neutrons. This results in the loss of two protons and two neutrons from the original nucleus.The ratio of decrease in proton number to the decrease in neutron number in alpha decay is 1:1. This is because an alpha particle consists of two protons and two neutrons, so the loss of an alpha particle results in the loss of two protons and two neutrons from the original nucleus. Therefore, the ratio of decrease in proton number to the decrease in neutron number is the same, which is 1:1.
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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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