What will an unstable nuclei do to become stable?

What rates do isotopes decay at?

Which isotopes have higher activities?

What happens to the decay rate if we have a larger sample of the same substance?

What is their a proportionality between in terms of decay?

what is the decay constant?

What are the units of decay constant?

On average what is the time taken for half of the nuclei in a sample to randomly decay?

What is the time taken independent of?

What does the theory of the exponential nature of decay indicate?

In practice what will actually happen?