1. If you were asked to make a report on the theme “From nuclear reactions to nuclear fission” which events would you include in it and what scientists would you mention? Comment on your choice.
2. Recollect the structure of the atom and name
- its main constituents,
- particles that the nucleus contains,
- the charge of each particle.
3. In your opinion,
- why is the atom neutral?
- what is a chain/nuclear reaction?
- what is the atomic number of an element?
4. The definitions of the words given in bold type in the text are included in the box. Match the words and their definitions.
| coming together violently; meeting and striking. |
| of a nucleus, esp. of a heavy atom, with release of energy. |
| not natural or real; made by the art of man. |
| change of the shape, nature or substance. |
| to compel smb to leave (a place); expel. |
| one of the constituents of an atom. |
| to break into parts, divide. |
| (of events, etc) repeating frequently or regularly. |
| losing strength, power, health. |
| to show by drawing or by describing; portray |