**Half-Life Questions And Answers Pdf**. An original sample of a radioisotope had a mass of 10 grams. The time taken for half the nuclei of that isotope in any sample to decay.

The time taken for half the nuclei of that isotope in any sample to decay. Web total for question = 10 marks q13. Or the time for the rate of decay to halve.

### The Answer Is Solved By Creating The Fraction.

N t = 1 2 n x n o = (1 2) 4 x 50 = 3.125 g. Gcse physics aqa revision notes 4. It can be measured by finding the time it takes for the count rate due to that isotope to halve.

### But The Rate At Which The Activity Of A Sample Decreases Can Be Known.

It is impossible to know when a particular unstable nucleus will decay. How much of the isotope will you have left after 10 years? How much of the isotope will you have left after 20 years?

### Radioactive Decay And Half Life (2011;3) (B) Describe What Is Meant By The Term, “Half Life Of A Radioactive Nuclide”.

Web total for question = 10 marks q13. Did this video help you? Half life questions and answers.

### It Is The Time It Takes For An Atom To Half Decay.

This unit is part of the specification: If the initial plasma level of the drug, given as a single dose, is 1200mg/l, what will its plasma level be after 8 hours? Which graph best shows how the activity of a radioactive isotope changes with time?

### The Units Of Radioactive Decay Are Bq (Becquerel).

Or the time for the activity / count rate to halve An 80 milligram sample of a radioactive isotope decays to 5 milligrams in 32 days. Put a cross ( ) in the box next to your answer.