Home
Class 12
CHEMISTRY
An artificial radioactive isotope gave "...

An artificial radioactive isotope gave `""_(7)^(14)N` after two successive `Beta`-particle emissions. The number of neutrons in the parent nucleus must be

A

9

B

14

C

5

D

7

Text Solution

Verified by Experts

The correct Answer is:
A
`""_(5)^(14)A overset(-2beta)to_(7)^(14)N`
Number of neutrons in parent nucleus - 14-5=9.
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER 9

    KCET PREVIOUS YEAR PAPERS|Exercise Chemistry|60 Videos

  • SOLVED PAPER 2011

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

The number of neutrons in the parent nucleus which gives ""^14N on beta emission is

The nucleus _48^115Cd , after two successive beta -decays will give

A radioactive element ""_(92) X^(238) emits one alpha - particle and one beta ' particle in succession. What is the mass number of new element formed?

The radioactive nucleide ""_(90)^(134)Th undergoes two successive beta- deacys followed by one alpha - decay. The atomic number and mass number respectively of the resulting radionucleide is :

In a radioactive decay , an element ""_(Z) X^(A) emits four alpha - particles , three beta - particles and eight gamma photons . The atomic number and mass number of the resulting final nucleus are

A radioactive decay can form an isotope of the original nucleus with the emission of particles

KCET PREVIOUS YEAR PAPERS-SOLVED PAPER 04-CHEMISTRY
  1. Which one of the following is not an amphoteric substance?

    Text Solution

    |

  2. When 50 cm^(3) of 0.2 N H(2)SO(4) is mixed with 50 cm^(3) of IN KOH, t...

    Text Solution

    |

  3. An artificial radioactive isotope gave ""(7)^(14)N after two successiv...

    Text Solution

    |

  4. Stainless steel does not rust because

    Text Solution

    |

  5. Which of the following combinations can be used to synthesise ethanol?

    Text Solution

    |

  6. A solution contains 1.2046xx10^(24) hydrochloric acid molecules in one...

    Text Solution

    |

  7. Nuclear theory of the atom was put forward by

    Text Solution

    |

  8. In acetylene molecule, the two carbon atoms are linked by

    Text Solution

    |

  9. The enthalpy of the reaction, H(2(g))+(1)/(2)O(2(g))toH(2)O((g)) is De...

    Text Solution

    |

  10. A radioactive isotope decays at such a rate that after 192 minutes onl...

    Text Solution

    |

  11. The pressure and temperature of 4 dm^(3) of carbon dioxide gas are dou...

    Text Solution

    |

  12. 4 g of copper was dissolved in concentrated nitric acid. The copper ni...

    Text Solution

    |

  13. In the manufacture of ammonia by Haber's process, N(2(g))+3H(2)leftrig...

    Text Solution

    |

  14. The chemical equilibrium of a reversible reaction is not influenced by

    Text Solution

    |

  15. Cumene process is the most important commercial method for the manufac...

    Text Solution

    |

  16. Which of the following reagents does not give acid chloride on treatin...

    Text Solution

    |

  17. Among the halogens, the one which is oxidised by nitric acid is

    Text Solution

    |

  18. The metal which does not form ammonium nitrate by reaction with dilute...

    Text Solution

    |

  19. The elements with atomic numbers 9, 17, 35, 53, 85 are all

    Text Solution

    |

  20. In the electrolytic method of obtaining aluminium from purified bauxit...

    Text Solution

    |