Q. 5.8 - An Introduction to General, Organic, and Biological Chemistry

Question

Write the atomic symbol for each of the following isotopes used in nuclear medicine:
a.$\mathrm{indium}-111$
b. data-custom-editor="chemistry" $\mathrm{palladium} -103$
c. data-custom-editor="chemistry" $\mathrm{barium}-131$
d. data-custom-editor="chemistry" $\mathrm{rubidium}- 82$

Step-by-Step Solution

Answer

Part(a) Atomic symbol is ${}_{49}{}^{111}\mathrm{In}$

Part(b) Atomic symbol is   ${}_{46}{}^{103}\mathrm{Pd}$

Part(c) Atomic symbol is  ${}_{56}{}^{131}\mathrm{Ba}$

Part(d) Atomic symbol is   ${}_{37}{}^{82}\mathrm{Rb}$

Part(a) Step 1 : Given information

We need to find atomic symbol for $\mathrm{indium}-111$

Part(a) Step 2 : Simplify

As we know $\mathrm{indium}-111$ can be used  for labelling of   Red cells, platelets, and leukocytes.

Its atomic symbol is ${}_{49}{}^{111}\mathrm{In}$

Part(b) Step 1 : Given information

We need to find atomic symbol for$\mathrm{palladium}-103$

Part(b) Step 2 : Simplify

$\mathrm{Pd}-103$ is a radioisotope of palladium, a metal used in brachytherapy implants.
Its atomic symbol is ${}_{46}{}^{103}\mathrm{Pd}$

Part(c) Step 1 : Given information

We need to find atomic symbol for $\mathrm{barium}-131$

Part(c) Step 2 : Simplify

$\mathrm{Barium}-131$ is a nuclear medicine radionuclide which could be used in single photon emission computed tomography (SPECT).

Its symbol is ${}_{56}{}^{131}\mathrm{Ba}$

Part(d) Step 1 : Given information

We need to find atomic symbol for $\mathrm{rubidium}-82$

Part(d) Step 2 : Simplify

In myocardial perfusion imaging, Rb is typically utilized.
Because this isotope is readily absorbed by myocardiocytes, it could be used to diagnose myocardial ischemia using Positron Emission Tomography (PET) imaging.

Its atomic symbol is ${}_{37}{}^{82}\mathrm{Rb}$