Au197
Au-197, or gold-197, is a stable isotope of gold with mass number 197 and atomic number 79. It is the only stable and naturally occurring isotope of gold, which means that natural gold is essentially monoisotopic, consisting almost entirely of 197Au.
Nuclear properties and stability: 197Au has 79 protons and 118 neutrons (N = A − Z = 118). It
Natural occurrence and abundance: In nature, gold is found predominantly as the native element in ores and
Physical and atomic characteristics: The atomic mass of 197Au is about 196.9666 atomic mass units. With an
Production and related isotopes: While 197Au itself is stable, isotopes of gold can be created artificially
Uses and significance: 197Au underpins the extensive use of gold in jewelry, electronics, dentistry, and catalysis,