A sound whistle blowing system is a critical component of good corporate governance. While public companies are required to meet SOX whiste blowing standards, private organizations, as well as small businesses, have also followed suit.
Previous answer: 1,729 MHz. There is no resonant frequency of gold. Gold does have an NMR frequency, which is 1.729MHz. All NMR frequencies are dependent on the ambient magnetic field, and gold's 1.729MHz is valid for a magnetic field of 2.35 Teslas, which is 45,000 times stronger than a typical Earth field strength.
Gold is considered the heaviest monoisotopic element. It has 79 protons and 118 neutrons in its atomic core, for a total of 197 nucleons. There are 18 radioisotopes of gold, meaning variants with different numbers of neutrons that are radioactive. An atom with a core that has a different number of protons than 79 is not gold.