Home
Class 12
CHEMISTRY
Radioactivity of a radioactive element r...

Radioactivity of a radioactive element remains `1//10` of the original radioactivity after `2.303` seconds. The half life period is

A

2.303

B

0.2303

C

0.693

D

0.0693

Text Solution

Verified by Experts

The correct Answer is:
C

`2.303 = (2.303)/(0.693) xx t_(1//2) log 10`
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR CHEMISTRY

    ERRORLESS |Exercise Ordinary Thinking (Artificial transmutation )|59 Videos
  • NUCLEAR CHEMISTRY

    ERRORLESS |Exercise Ordinary Thinking (Isotopes-Isotones and Nuclear isomers)|34 Videos
  • NUCLEAR CHEMISTRY

    ERRORLESS |Exercise Ordinary Thinking (Causes of radioactivity and Group displacement law)|66 Videos
  • NITROGEN CONTAINING COMPOUNDS

    ERRORLESS |Exercise JEE (ADVANCED) 2018 MORE THAN ONE CHOICE CORRECT ANSWER|1 Videos
  • ORES, MINERALS AND METALLURGICAL EXTRACTION

    ERRORLESS |Exercise JEE ANSWER TPYE QUESTION (JEE Advanced) 2018) Numeric answer type question|1 Videos

Similar Questions

Explore conceptually related problems

The radioactivity of a certain radioactive element drops to 1//64 of its initial value in 30 seconds. Its half-life is.

Half-life of radioactive element depend upon

The activity of a radioactive element reduces to (1//16)th of its original value in 30 years. Find its half life?

After a period of 100 days the radioactive of an isotope remains 1/4th of the original activity . The half life of the isotope is

The nuclear activity of a radioactive element becomes (1/8)^(th) of its initial value in 30 years. The half-life of radioactive element is ________ years.

The radioactivity of an element was found to be one millicurie. What will be its radioactivity after 42 days if its has half life of 14 days?

Half-life period for radioactive element is

ERRORLESS -NUCLEAR CHEMISTRY -Ordinary Thinking (Rate of decay and Half - life)
  1. If ""^(235)U is bombarded with neutron, the atom will split into

    Text Solution

    |

  2. The half life of a radioactive element is 30 min. One sixteenth of th...

    Text Solution

    |

  3. Radioactivity of a radioactive element remains 1//10 of the original r...

    Text Solution

    |

  4. Half-life of a radioactive disintegration (A rarr B) having rate const...

    Text Solution

    |

  5. If 3//4 quantity of a radioactive element disintegrates in two hours, ...

    Text Solution

    |

  6. The half-life of .(92)U^(238) " is " 4.5 xx 10^(9) years. After how ma...

    Text Solution

    |

  7. A radioactive isotope having a half life of 3 days was received after ...

    Text Solution

    |

  8. What is the value of decay constant of a compound having half life tim...

    Text Solution

    |

  9. An element has half-life 1600 years. The mass left after 6400 years wi...

    Text Solution

    |

  10. The C^(14) " to " C^(12) ratio in a wooden article is 13% that of the ...

    Text Solution

    |

  11. The radioaisotope of hydrogen has a half-life of 12.33 y. What is the ...

    Text Solution

    |

  12. Shorter the radioactive half life

    Text Solution

    |

  13. Two radioactive elements X and Y have half-lives of 6 min and 15 min r...

    Text Solution

    |

  14. Half-life is the time in which 50% of radioactive element disintegrate...

    Text Solution

    |

  15. The value of one mincrocurie = .... disintegrations/second

    Text Solution

    |

  16. A radioactive element has a half-life of 20 minutes. How much time sho...

    Text Solution

    |

  17. A radioactive isotope has a half-life of 10 day. If today there are 12...

    Text Solution

    |

  18. The half-life of Co^(60) is 7 years. If one g of it decays, the amount...

    Text Solution

    |

  19. Half-life of a radioactive substance is 120 days. After 480 days, 4 g ...

    Text Solution

    |

  20. 75% of a first-order reaction was completed in 32 minutes, when was 50...

    Text Solution

    |