In radioactivity, half-life refers to the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay. If the half-life is 1 000 years, which of the following alternatives is the best approximation of the time, when 7/8 of nuclei have decayed and 1/8 are remaining?
Answers
Answer:
The time when 7/8 of nuclei have decayed and 1/8 are remaining is approximately 3,000 years after the original sample was formed.
Explanation:
The half-life of a radioactive substance is the time it takes for half of the original amount of the substance to decay. If the half-life of a substance is 1,000 years, this means that after 1,000 years, half of the original amount of the substance will have decayed and half will still be remaining.
After 2,000 years (2 half-lives), 1/4 of the original amount will still be remaining. After 3,000 years (3 half-lives), 1/8 of the original amount will still be remaining.
Radioactive substances
These substances are used in various applications, such as nuclear power generation, medical imaging and treatment, and industrial and scientific research.
Examples of radioactive substances are uranium, radium, plutonium, thorium, etc.
To learn more about Radioactive substances, visit
https://brainly.in/question/4583898
https://brainly.in/question/5500613
#SPJ1