Question 1
What is the definition of the activity of a radioactive sample?
Question 2
What does the becquerel measure?
Question 3
Which device is used to measure the activity of radioactive materials?
Question 4
What will be the remaining number of radioactive nuclei in a sample after 4 half-lives, starting from 1 million nuclei?
Question 5
What happens to the number of radioactive nuclei as more isotopes decay?
Question 6
How does the decay process occur in radioactive materials?
Question 7
If a radioactive sample has an initial activity of 800 Bq and drops to 400 Bq in 5 hours, what is the half-life of the sample?
Question 8
What is a decay curve?
Question 9
What happens to the activity of a sample as the number of decayed isotopes increases?
Question 10
How can you determine the half-life from a decay curve?
Question 11
Which unit is used to measure the activity of radioactive materials?
Question 12
What is the activity of a sample if 2000 isotopes decay each second?
Question 13
How can half-life be confirmed using another halving in activity?
Question 14
Why is the decay rate described as random?
Question 15
How is the half-life of a radioactive substance defined?
Question 16
If the initial activity of a sample is 1000 Bq and its half-life is 3 hours, what will be the activity after 6 hours?