An atom of the most common isotope of gold, ¹⁹⁷Au, has protons, _ _ neutrons, and electrons.

Name: An atom of the most common isotope of gold, 197 Au, has protons, _ _ neutrons, and electrons.
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Gold (Au) has an atomic number of 79, meaning it has 79 protons and 79 electrons. The most common isotope, 197Au, has a mass number of 197. The number of neutrons is the mass number minus the number of protons: 197 - 79 = 118 neutrons.

An Atom of the Most Common Isotope of Gold, 197Au

An Atom of the Most Common Isotope of Gold, ¹⁹⁷Au