A half-life of a radioactive substance is the amount of time needed for one half of what to decay into a stable isotope?
1 Answer
Nov 6, 2016
A half-life is the time it takes for half of a radioactive sample to decay into a stable isotope.
Explanation:
So, if we have 100 molecules in a radioactive sample, the half-life would be the time taken for 50 molecules to decay, then 25 etc.
