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प्रश्न
The radioactive isotope used in the treatment of cancer is :
विकल्प
plutonium-239
arsenic-74
cobalt-60
iodine-131
उत्तर
cobalt-60
Cobalt-60 is used in the treatment of cancer. High-energy gamma rays emitted by cobalt-60 isotopes destroy cancerous tumours.
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संबंधित प्रश्न
Give one example of a radioactive isotope which is used as a fuel in the reactors of nuclear power plants.
Name the Radioactive Isotope Which is Used in the Treatment of Cancer.
Which of the following pairs are isotopes ? Give reasons for your choice :
(i) `""_26^58"A"`, `""_28^58"B"` or (ii) `""_35^79"X"`, `""_35^80"Y"`
Three different atoms of oxygen are represented as :
`""_8^16"O"`, `""_8^17"O"`, `""_8^16"O"`
(i) What do the subscripts (lower figures) and superscripts (upper figures) represent ?
(ii) What factor is responsible for the change in the superscripts 16, 17 and 18, though the element is the same ?
(iii) What is the usual name for such atoms of an element ?
(iv) Give the nuclear composition of `""_8^16"O"`.
Chlorine is an element of atomic number 17. It is a mixture of two isotopes having mass number of 35 and 37.
- What is meant by “atomic number of an element”? What do you understand by an ‘atom’
- Write down the electronic configuration of the chlorine atom.
- State the number of protons, electrons, and neutrons in the following isotopes: 35Cl17, 37Cl17
- Explain why the two atoms in (iii) above have the same chemical reactions.
- If molten magnesium chloride is electrolyzed suggest a suitable electrode [anode].
Name or state the following.
The three isotopes of hydrogen.
Which statement is not correct about the isotopes of an element?
The isotope was used to remove the brain tumor and treatment of Cancer in ______.
U-235 Isotope is used as ______.
Isotopes of elements have the same chemical properties.
