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प्रश्न
What are ‘Becquerel rays’?
उत्तर
Becquerel rays are ‘radioactive radiations’, emitted from radioactive substances like uranium, thorium etc. Since these radiations were discovered by Henry Becquerel, so they are named as ‘Becquerel rays’.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
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?
What is nucleus of an atom? Compare its size with that of the atom. Name its constitutents. How is the number of these constituents determined by the atomic number its atomic model.
What happens to the position of an element in the periodic table when it emits an alpha particle
An element P disintegrates by α - -emission and the new element suffers two further disintegrations, both by β -emission, to form an element Q. Explain the fact that P and Q are the isotopes.
Define bound electrons.
Define atomic number of an element.
What is meant by Radioactivity?
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
