Chemical elements · Directory entry

Gold

Element 79 · chemical symbol: Au

These Vrulum profiles mention Gold by name. Read each profile for its specific context; a mention alone does not establish composition, performance or use of the pure element.

For periodic-table data and other properties, consult the Royal Society of Chemistry periodic table.

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Research and prototypes

AI mathematical reasoning and theorem proving

AI systems now solve some olympiad-level mathematics problems, including a score at gold-medal level at the 2025 International Mathematical Olympiad. Formal proof systems that check each step in the Lean language are the most rigorous of these approaches, but results on contest problems do not yet show that AI can solve open research problems.