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The nuclear activity of a neutral atom a...

The nuclear activity of a neutral atom and its ion is always the same.

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Which of the following statements is correct with regard to complex ion ? . (a) complex ion consists of a central ion bonded to two or more donor ions or molecules usually does not dissociate into simple ions or molecules even in a solution and exhibits properties different from its constituent ions or molecules (b) The donor ions and molecues which coordinate with the central atom or ion a complex are called ligands The sum of the number of electrons pressent in the central metal ion or atom and those donated by the ligands is called the effective atomic number of the central metal aton and this number is usually the same as the atomic number of the next higher noble gas (d) All of these .

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When a metal atom becomes an ion : -

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CENGAGE CHEMISTRY ENGLISH-NUCLEAR CHEMISTRY-Exercise True/False
  1. The alpha- rays have more penetrating power than gamma- rays.

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  2. Radioisotopes of elements have same atomic number.

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  3. Smaller the value of half- life period, greater is the number of atoms...

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  4. Radon, actinon, and thoron are isobars.

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  5. The last member of 4n+1 series is an isotope of …………………………………. .

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  6. Gamma rays produce maximum ionization in gases.

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  7. The radioactive decay follows zero- order kinetics.

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  8. Pu^(239) is an artificial fissile material.

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  9. The control rods used in a muclear reactor can be made up of

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  10. I^(131) is unsed to study the activity of thyroid gland.

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  11. Alpha particles are positively charged.

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  12. Tritium is beta- radioactive in nature.

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  13. The atomic reactor when used to generate electricity is termed breeder...

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  14. The nuclear activity of a neutral atom and its ion is always the same.

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  15. A positron is as heavy as a proton.

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  16. The percentage efficiency of nuclear fissiion is higher than nuclear f...

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  17. The ratio of C^(14)//C^(12) in dead tissue is less than that in fresh ...

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  18. The SI unit of radioactivity is curie.

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  19. All radioactive elements which emit beta- rays have the same half - l...

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  20. The emission of an alpha- particle reduces the mass of nuclei by 4 uni...

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