Presentation

Make up a presentation “ATOMIC STRUCTURE OF MATTER”

(See appendix 4)

SECTION 2

NUCLIDES

LEAD-IN

Comment the following statement.

“The Chart of the Nuclides, like the Periodic Table, is a convenient format for presenting a large amount of scientific information in an organized manner.”

Define the following terms.

a) Enriched uranium

b) Depleted uranium

3. Give definition to the following terms:

a) nuclide

b) atomic number

c) mass number

4. The word ‘isotope’ comes from the Greek «isotopos» that means ‘the same place’. How can you explain this meaning?

READING

TEXT 1

Look at the illustration below and the words and phrases taken from the text. With a partner predict what is being discussed. Share your ideas with other students in your group.