Isotope of Uranium
Explanation
Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. While they share chemical properties, their nuclear properties can vary significantly, leading to specific applications in medicine, energy, and archaeology.
Option Analysis
- Isotope of Cobalt is incorrect: An isotope of Cobalt (specifically Cobalt-60) is radioactive and emits gamma rays. It is primarily used in the treatment of cancer (radiotherapy).
- Isotope of Iodine is incorrect: An isotope of Iodine (specifically Iodine-131) is used in medical diagnostics and treatment for thyroid disorders, such as goitre.
- Isotope of Uranium is correct: An isotope of Uranium (specifically Uranium-235) is used as fuel in nuclear reactors. It is a fissile material, meaning it can sustain a nuclear chain reaction when struck by neutrons, releasing a massive amount of energy.
- Isotope of Carbon is incorrect: An isotope of Carbon (specifically Carbon-14) is radioactive and is utilized in radiocarbon dating to determine the age of fossils and organic archaeological materials.
Key Takeaway: Uranium-235 is the primary fissile isotope used as fuel in nuclear power plants, whereas isotopes like Co-60, I-131, and C-14 have applications in medicine and dating techniques.