Chapter 19, Problem 4STP

Interpretation Introduction

Interpretation: Nuclides finding applications in medical diagnosis and treatment of human body has to be identified.

Concept introduction: In a nuclear reaction, unstable nuclide disintegrates into stable nuclide with emission of various radiations spontaneously. It is called radioactivity of nucleus. Emission of rays like alpha, beta and gamma rays occur in the process which changes the identity of nucleus.

During a nuclear change, an element undergoes change in its atomic mass or atomic number or both by emission of charged particles such as beta particle, alpha particle. Beta particle is one that has unit negative charge and alpha particle is one that has 2 unit positive charges and is equivalent to helium atom ${}_2^4\text{He}$ . Emission of proton, beta particle, alpha particle causes a change in atomic number of element.

Answer to Problem 4STP

Radiotracers find applications in medical diagnosis and treatment of human body.

Explanation of Solution

Nuclides which can be incorporated into organisms in medicines, to trace their activity are called radiotracers. ${}_6^{14}\text{C}{\&}_{15}^{12}\text{P}$ are some examples of radiotracers introduced in body to trace the activity of nutrients in energy generation.

Conclusion

Radiotracers find applications in medical diagnosis and treatment of human body.