The isotopes of an element:
Correct answer: B. Have similar chemical properties
- A. Cannot be separated at all
- B. Have similar chemical properties
- C. Occur well separated in nature
- D. Cannot be separated by physical methods
Explanation
Isotopes of an element have the same number of protons and electrons, which primarily determines their chemical behavior. Since chemical reactions involve electron interactions, isotopes react in nearly identical ways.
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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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