Page 567 - SUBSEC October 2017_Neat

UNIT 2
MODULE 3: ATOMIC AND NUCLEAR PHYSICS (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Radioactivity (cont’d)

Students should be able to:

4.5. write equations for
radioactive decay;

4.6. interpret equations for
radioactive decay;

4.7. discuss the environmental Special attention should be
hazards of radioactive paid to potential nuclear
emissions; biohazards in the Caribbean
environment.

4.8. discuss the necessary safety Including the use of
precautions for handling and personal protective
disposal of radioactive equipment (PPE), double
material; hull ships and thick concrete
as part of handling and
disposal.

4.9. explain: A = λN See Appendix II for
suggested practical activity.
(a) activity;

(b) decay constant; and,

(c) half- life;

4.10. use the law of decay See Appendix II for
dN suggested practical activity.
= - λN and N = N exp(-λt)
0
dt
to solve problems;

4.11. ln2 Apply this equation to any
use the relation T =
1 λ similar process such as half
2 thickness.
to solve problems;

4.12. describe an experiment to Half life of Radon-220. Simulations of the half
determine the half-life of a life/half thickness using
radioactive isotope with a absorption of light through
short half-life; filters of varying thickness.

CXC A16/U2/17 67