Final answer:
The noble gas notation for gold (Au) is [Xe] 4f¹⁴ 5d¹⁰ 6s¹; gold is in the same period as xenon and has additional electrons in the 4f, 5d, and 6s orbitals.
Step-by-step explanation:
The noble gas notation for gold (Au) involves representing the electronic configuration of gold starting from the nearest noble gas preceding it in the periodic table, followed by the remaining electron configuration. Gold, with an atomic number of 79, is in the same period as xenon (Xe), which has an atomic number of 54. The noble gas notation for gold is therefore [Xe] 4f¹⁴ 5d¹⁰ 6s¹. This indicates that gold has the same electron configuration as xenon up to 54 electrons, followed by the electrons in the 4f, 5d, and 6s orbitals that account for its position in the periodic table beyond xenon.