Alpha rays are nuclear radiations. They are in fact same as _ nuclei.
Correct answer: D. Helium
- A. Hydrogen
- B. Deuterium
- C. Tritium
- D. Helium
- E. Lithium
Explanation
Option A: Hydrogen is the simplest element in the periodic table. It has one proton and no neutrons. Option B: Deuterium is an isotope of hydrogen. It has one proton and one neutron. Option C: Tritium is an isotope of hydrogen. It has one proton and two neutrons. Option D: Helium is an element with two protons and two neutrons. Option E: Lithium is an element with three protons and four neutrons.
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About Nuclear Physics
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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