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When an is emitted, a new atomic nuclei...

When an _________________ is emitted, a new atomic nuclei is formed whose atomic number decreases by two and only energy level changes.

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`alpha`-particle
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SURA PUBLICATION-NUCLEAR PHYSICS-ADDITIONAL QUESTIONS & ANSWER (FILL IN THE BLANKS)
  1. The ratio of wavelengths of the last line of Balmer series and the las...

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  2. Given the value of Rydberg constant is 10^7m^-1, the wave number of th...

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  3. When an is emitted, a new atomic nuclei is formed whose atomic number...

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  4. Two particles of masses m1, m2 move with initial velocities u1 and u2....

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  5. When a radioactive nucleus disintegrates by emitting a atomic number ...

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  6. Hydrogen atom in ground state is excited by a monochromatic radiation ...

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  7. I Becequerel= disintegrations per second.

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  8. Consider 3rd orbit of He+ (Helium), using non- relativistic approach, ...

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  9. Curie is defined as the quantity of radioactive substance which gives ...

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  10. The activity of one gram of radium is equal to .

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  11. Artificial radioactivity was discovered by

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  12. In the spectrum of hydrogen, the ratio of the longest wavelength in th...

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  13. Electron in hydrogen atom first jumps from third excited state to seco...

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  14. In the hydrogen spectrum, the ratio of the longest wavelength in the B...

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  15. In the spectrum of hydrogen, the ratio of the longest wavelength in th...

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  16. The radioactive isotope used to diagnose anaemia is .

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  17. An electron of a stationary hydrogen atom passes from the fifth energy...

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  18. The transition from the state n=3 to n=1 in a hydrogen like atom resul...

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  19. The radioactive isotope used in estimating the age of specimens is .

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  20. The wavelength of the first line of Lyman series for hydrogen atom is ...

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