Home
Class 12
CHEMISTRY
The half- life periods of four isotopes ...

The half`-` life periods of four isotopes are give below `:`
`(i) 7.6 years` , ` ii. 4000 years`
`iii. 6000 years`,`iv. 3.2xx10^(5) years`
Which of the above isotope is most stable ?

A

iv

B

iii

C

ii

D

i

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise OBJ - B|54 Videos
  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise Assettion Reason|26 Videos
  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise Problem Practices|44 Videos
  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    OP TANDON|Exercise Single integer|8 Videos
  • SATURATED ALIPHATIC HYDROCARBONS

    OP TANDON|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|7 Videos

Similar Questions

Explore conceptually related problems

The activity of a nucleus is inversely proportional to its half of average life. Thus, shorter the half life of an element, greater is its radioactivity, i.e., greater the number of atomsd disintegrating per second. The relation between half life and average life is t_(1//2) = (0.693)/(lambda) = tau xx 0.693 or tau = 1.44 t_(1//2) The half-life periods of four isotopes are given 1 = 6.7 years, II = 8000 years, III = 5760 years, IV = 2.35 xx 10^(5) years. Which of these is most stable?

The half life period of four isotopes (i) 6.7 yr " " (ii) 8xx10^(3) yr (iii)5760 yr " " (iv) 2*35xx10^(5) yr, The most stable isotope is

The half life of a radio isotope is 5 years . The fraction which will decay in 15 years , will be

A sample of uranium is a mixture of three isotopes ._(92)U^(234), ._(92)U^(235) and ._(92)U^(238) present in the ratio 0.006%, 0.71% and 99.284% respectively. The half lives of then isotopes are 2.5xx10^(5) years, 7.1xx10^(8) years and 4.5xx10^(9) years respectively. The contribution to activity (in % ) of each isotope in the sample respectively

The half life period of a radioactive substance is 10 year. The amount of the substance decayed after 40 years would be

The half - life of ._6C^(14) , if its lamda is 2.31 xx10^(-4) " year"^(-1) is

Calculate the half-life period of a radioactive element which remains only 1/16 of it's original amount in 4740 years. ( A) 1185 years ( B) 2370 years (C) 52.5 years (D) none of these

Calculate the half-life period of a radioactive element which remains only 1/16 of it's original amount in 4740 years. ( A) 1185 years ( B) 2370 years (C) 52.5 years (D) none of these

OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -OBJ - A
  1. A freshely prepared radioactive source of half 2 hours emits radiation...

    Text Solution

    |

  2. A radioisotope has a half life of 10 days. If today there is 125 g of...

    Text Solution

    |

  3. The half- life periods of four isotopes are give below : (i) 7.6 yea...

    Text Solution

    |

  4. The first stable which was transmuted b artificial means was:

    Text Solution

    |

  5. When .(13)^(27)Al is bombarded whith alpha-particles, a radioactive is...

    Text Solution

    |

  6. Which of the following transformation is not correct?

    Text Solution

    |

  7. The reaction .(92)U^(235) + .(0)n^(1) rarr .(56)Ba^(140) + .(36)Kr^(93...

    Text Solution

    |

  8. .(6)C^(14) in upper atmosphere is generated by the nuclear reaction

    Text Solution

    |

  9. In the transformation of ""(92)""^(238)U to ""(92)""^(234)U, if one em...

    Text Solution

    |

  10. A positron is emitted from .(11)Na^(23) . The ratio of the atomic mass...

    Text Solution

    |

  11. Hydrogen bomb is based on the principle of

    Text Solution

    |

  12. Which of the following is not a fissionalbe material?

    Text Solution

    |

  13. The fuel in atomic pile is :

    Text Solution

    |

  14. The energy released in an atom bomb explosion is mainly due to

    Text Solution

    |

  15. One gram of mass is equal to:

    Text Solution

    |

  16. Liquid sodium is used in nuclear reactor. What is its function?

    Text Solution

    |

  17. A sample of rock moon contains equal numbers of atoms of uranium and l...

    Text Solution

    |

  18. In treatment of cancer, which of the following is used?

    Text Solution

    |

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

    Text Solution

    |

  20. Which one of the following statement is wrong?

    Text Solution

    |