Ask Question
13 November, 08:33

2.5 gram sample of a radioactive element was formed in a 1960 explosion of an atomic bomb at Johnson Island in the Pacific Test Site. The half-life of the radioactive element is 28 years. How much of this element will remain after 112 years

+3
Answers (1)
  1. 13 November, 08:45
    0
    0.15625 grams

    Explanation:

    Half life: It is related to the decay of radioactive material. The duration in which half of the material will be degraded/decayed. That means after half life 50% of the radioactive material will be left. Here the half life is 28 years.

    Initial quantity of the sample: 2.5 grams.

    After 28 years, the leftover quantity = 1.25 grams

    After 56 years, the leftover quantity = 0.625 grams

    After 84 Years, the leftover quantity = 0.3125 grams

    After 112 years, the leftover quantity = 0.15625 grams
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “2.5 gram sample of a radioactive element was formed in a 1960 explosion of an atomic bomb at Johnson Island in the Pacific Test Site. The ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers