Home
Class 11
CHEMISTRY
Number of neutrons i8n a parent nucleus ...

Number of neutrons i8n a parent nucleus `X`, which gives `._(7)^(14)N` after two sucessive `beta-` emission would be:

A

6

B

7

C

8

D

9

Text Solution

Verified by Experts

The correct Answer is:
D
`""_(a)^(b)X to ""_(7)^(14)N+2""_(-1)e^(0)`
`a=7-2=5`
b=14
`therefore ""_(a)^(b)X=""_(5)^(14)X`
Number of neutrons =14-5=9
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Selected Straight Objected Type MCQs|26 Videos

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Linked Comprehension Type MCQs|9 Videos

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Evaluate Yourself|45 Videos

  • NOMENCLATURE OF ORGANIC COMPOUNDS

    DINESH PUBLICATION|Exercise MCQs|13 Videos

  • ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES

    DINESH PUBLICATION|Exercise PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS|38 Videos

Similar Questions

Explore conceptually related problems

Find the number of neutrons in a parent nucleus X , which gaves ._(7)N^(14) after two succe3ssive beta- emission.

The number of neutrons in the parent nucleus which gives N^(14) on beta emission is ………………………… .

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

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

DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Revision Questions from Competitive Exams
  1. The radioactive isotope used to estimate the age of ancient geological...

    Text Solution

    |

  2. The half life period of a radioctive element is 140 days. Afte 560 day...

    Text Solution

    |

  3. Number of neutrons i8n a parent nucleus X, which gives .(7)^(14)N afte...

    Text Solution

    |

  4. The activity of radionuclide (""^(100)X) is 6.023 curie. If the disint...

    Text Solution

    |

  5. The symbol x in the following equation is ""(11)Na^(23)+""(1)H^(1) ...

    Text Solution

    |

  6. The half - life of .(92)U^(238) against alpha - decay is 4.5 xx 10^(9)...

    Text Solution

    |

  7. Sulphur 35(34,96903 amu) emits a beta- particles but no gamma-rays. Th...

    Text Solution

    |

  8. In the following radioactive decay, ""(92)U^(238)rarr ""(89)Y^(220) , ...

    Text Solution

    |

  9. The half-life of a radioactive isotope is 3 h. if the initial mass of ...

    Text Solution

    |

  10. beta-particles are

    Text Solution

    |

  11. What will be half life period of a nucleus if at the end of 4.2 days, ...

    Text Solution

    |

  12. If 2.0 g of a radioactive substance has t(1//2) of 7 days , the half l...

    Text Solution

    |

  13. Neutron was discovered by ………

    Text Solution

    |

  14. Isobar of a nucleide is formed when ……takes place ?

    Text Solution

    |

  15. After 2 hr the radioactive substance becomes 1/16 th of original amoun...

    Text Solution

    |

  16. The reaction ""(7)N^(14) + ""(0)n^(1) rarr ""(6)C^(14)+X requires em...

    Text Solution

    |

  17. Positron was so named by

    Text Solution

    |

  18. The number of alpha and beta particles emitted in nuclear reaction ""(...

    Text Solution

    |

  19. Wooden article and freshly cut tree show activity 7.6 and 15.2 min""^(...

    Text Solution

    |

  20. A radioactive isotope having t(1/.2)=2.3 days was received after 9.2 d...

    Text Solution

    |