Combined Science: Trilogy 8464: P4.Atomic structure Topical Past Paper Questions

Some people used to think that radioactive substances had health benefits. In the 1920s, a water container called a revigorator was sold. The walls of a revigorator contain radioactive isotopes. Figure 6 shows a revigorator. Figure 6 The revigorator was filled with water and left…

A scientist investigated a sample of a radioactive material to determine if it would be suitable for medical use. 1 The method, results and conclusions of the scientist will need to be checked by other scientists before the results of the investigation are published. What name is…

A smoke detector contains a source of alpha radiation in a plastic case. 1 A source of beta radiation in a smoke detector would be more hazardous than a source of alpha radiation. Explain why. [2 marks] 2 Actinium (Ac) is one source of alpha radiation. An actinium (Ac) nucleus em…