The half-life of a certain nuclide is 3.5 hours. Which statement below is true?
ID: 1018311 • Letter: T
Question
The half-life of a certain nuclide is 3.5 hours. Which statement below is true?
After 7.0 hours have elapsed, one-quarter of the original amount of the nuclide remains.
It is not possible to know exactly how much of the nuclide remains after 7.0 hours because temperature has an effect on the rate of decay. After 7.0 hours have elapsed, all of the nuclide has decayed (none remains). After 7.0 hours have elapsed, three-quarters of the original amount of the nuclide remains.After 7.0 hours have elapsed, one-quarter of the original amount of the nuclide remains.
Explanation / Answer
answer is last option
After 7.0 hours have elapsed, one-quarter of the original amount of the nuclide remains
intial concentraion 100%
to become 100 to 50 time is 3.5 h
after 7 hpurs means two half lifes 75% will consume 25 % will remain
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.