Isotopes are the atoms of the same element having the same atomic number but different mass numbers.
Isotopes of an element share the same number of protons but have different numbers of neutrons. Thus, isotopes are defined first by their element and then by the protons and neutrons’ sum.
Silicon isotopes are used in a variety of applications.
- Si-28 has been suggested to improve the thermal conductivity of semiconductors.
- Si-29 is used extensively in NMR spectroscopy.
- Si-30 has been used to produce the radioisotope Si-31.
- Si-30 has also been used to study the self-diffusivity of Silicon and also study the isotope effect on superconductivity.