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5/39 MCQs for:
Radioactivity
Radioactivity is the process by which:

Which of the following quantities are conserved in all nuclear reactions?

1) Electric charge

2) Number of nuclei

3) Number of protons

An atom is represented by ¹⁷8X. Which of the nuclides below is an isotope of this atom?

Radiation can be used beneficially in medicine for:
Gamma rays are: