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प्रश्न
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
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उत्तर
C14 is a radioisotope. It is used in carbon dating to determine the age of organic materials. It is used in biological research, agriculture, pollution control, and archaeology and so on.
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संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
Answer the following questions based on a hot cathode ray tube
Name the charged particles
Name the unit in which the work function of a metal is expressed.
Give the relative ionizing power of α, β and γ radiations.
What happens to the mass number of an element when (i) an α -particle, (ii) a β -particle, and (iii) γ -radiation is emitted?
Define free electrons.
Why are materials of low work function preferred as thermionic cathode materials?
The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
The mean lives of a radioactive substance are 1620 and 405 years for β-emission and β-emission respectively. The time after which three fourth of a sample will decay if it is decaying both by β-emission and β-emission simultaneously will be ______ years.
(Take ln 2 = 0.693)
