Gold-198
= Gold-198
{wiki=Gold-198}
Gold-198 (Au-198) is a radioactive isotope of gold. It has a mass number of 198, meaning it contains 118 neutrons and 79 protons in its nucleus. Au-198 is primarily produced through the neutron activation of gold-197, which is the most stable and abundant isotope of gold. **Key Characteristics of Gold-198:** 1.