Pages in this set

Page 1

Preview of page 1
Half-life
Radioactive decay is a random process. Each nucleus in a sample of an isotope decays at
random.

It happens regardless of:
- outside conditions such as temperature and pressure
- the chemical state of the isotope
- whether the radioactive substance is a solid, liquid, gas or solution.

E.g.…

Page 2

Preview of page 2
Calculating and Using Half-life
If you know the half-life of a radioactive isotope, you can use it to calculate:

- The time needed for the activity, or the mass of the isotope, to fall to a certain value
- The mass of the isotope, or its activity, after it has…

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »