Nuclear physics

Abstract

After this chapter you should

• know what particles make up the nucleus of an atom

• know that isotopes of an element have different masses but the same chemistry

• know the differences between alpha, beta, and gamma radiations

• know how nuclear radiations can be detected

• know what precautions are taken in handling radioactive sources

• be able to explain the presence of background radiation

• know how radioactive radiations decay with time

• understand how the ages of organic remains and some rocks may be estimated.