Q.3. Answer the following question in brief. (1) Define isotopes. Write any four uses.
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senthiljruby1986
Isotopes are atoms of the same chemical element that have the same number of protons but different numbers of neutrons. As a result, isotopes have the same atomic number but different atomic masses.
Four uses of isotopes are:
1. Medical Diagnosis and Treatment: Radioactive isotopes are used in medical imaging techniques like positron emission tomography (PET) scans to diagnose various diseases. They are also used in radiation therapy to treat cancer.
2. Carbon Dating: Isotopes, such as carbon-14, are used in carbon dating to determine the age of ancient artifacts and fossils.
3. Agricultural Applications: Isotopes are used in agriculture to track the uptake and movement of nutrients in plants and study plant physiology.
4. Industrial Applications: Isotopes are used in various industrial applications, such as radiography to inspect welds and detect defects in structures, as well as in tracing and leak detection studies.
Answers & Comments
Four uses of isotopes are:
1. Medical Diagnosis and Treatment: Radioactive isotopes are used in medical imaging techniques like positron emission tomography (PET) scans to diagnose various diseases. They are also used in radiation therapy to treat cancer.
2. Carbon Dating: Isotopes, such as carbon-14, are used in carbon dating to determine the age of ancient artifacts and fossils.
3. Agricultural Applications: Isotopes are used in agriculture to track the uptake and movement of nutrients in plants and study plant physiology.
4. Industrial Applications: Isotopes are used in various industrial applications, such as radiography to inspect welds and detect defects in structures, as well as in tracing and leak detection studies.