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प्रश्न
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उत्तर
संबंधित प्रश्न
When does the nucleus of an atom tend to become radioactive?
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 the term radioactivity.
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
Heavy radioactive elements eventually turn into ______.
Assertion (A): Hydrogen atom consists of only one electron but its emission spectrum has may lines.
Reason (R): Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.
What is radioactivity?
While investigating which phenomena was Becquerel studying uranium salts when he discovered radioactivity?
In beta decay, what particles can the nucleus emit?
