Nuclear radiation - Edexcel

1

What can significantly reduce gamma radiation?

2

What form of radiation is emitted by nuclei with too many neutrons?

3

What is gamma radiation?

4

Which form of radiation has the highest ionising power?

5

What is a positron?

6

What is the activity of a source that emits 1,200 particles per minute?

7

Uranium 238 emits an alpha particle to become what nucleus?

8

What is an alpha particle?

9

Which type of radiation can reach the furthest?

10

What fraction of a radioisotope has decayed after two half-lives?