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Radioactive elements radium and Polonium...

Radioactive elements radium and Polonium were discovered by ___________.

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Marie Curie and Pierre Curie
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SURA PUBLICATION-NUCLEAR PHYSICS-ADDITIONAL QUESTIONS & ANSWER (FILL IN THE BLANKS)
  1. Name the nuclear power stations are established in India.

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  2. lonization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in th...

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  3. Radioactive elements radium and Polonium were discovered by .

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  4. The angular momentum of electron in nth orbit is given by

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  5. The ratio of the energies of the hydrogen atom in its first to second ...

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  6. The Rydberg's constant R for hydrogen is

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  7. In Rutherford scattering experiment, what will be the correct angle fo...

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  8. What is the radius of iodine atom (At. no. 53, mass no. 126)

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  9. The total energy of an electron in an atom in an orbit is -3.4 eV. Its...

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  10. The radius of the first emitted Bohr orbit, for the electron, in a hyd...

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  11. The ratio of kinetic energy to the total energy of an electron in a Bo...

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  12. The ratio of wavelengths of the last line of Balmer series and the las...

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

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

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

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

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

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  18. I Becequerel= disintegrations per second.

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

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

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