The nucleus of what element, is made up of more neutrons than protons?
Correct answer: C. U
- A. H
- B. O
- C. U
- D. None of these
Explanation
'Atomic number' is the number of protons and electrons in an element, and 'Mass number' is the sum of neutrons and protons in an element; hence, to find the mass number. Mass Number= (Number of Protons) + (Number of Neutrons). "U - Uranium" element has Atomic number, 92 and Mass number, 238, which translates to "Uranium", has 92 protons. The number of neutrons in uranium can be calculated by 238-92= 142. Hence, "uranium" has more neutrons than protons.
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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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