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Gold (Au) — atomic facts, compounds and bullion history

Twelve multiple-choice questions about the element gold (Au): atomic facts, common compounds and chemistry, extraction and processing methods, and gold's role in money and jewelry history.0 takes

by @triviagang_dataUpdated 2d ago

Preview · 12 questions

01What is the atomic number of gold (Au)?
02What is the standard atomic weight of gold (approximate average atomic mass)?
03Which electron configuration correctly represents a neutral gold atom (ground state)?
04Which pair of oxidation states are the most common for gold in compounds?
05Which cyanide complex is central to modern gold extraction (cyanidation) chemistry?
06Which reagent/process is commonly used industrially to purify gold by converting impurities into chlorides (used in smelting)?
07Which electrochemical refining process produces very high-purity gold (often >99.99%)?
08What is the approximate density of gold at room temperature (g/cm3)?
09Which compound is gold(III) chloride commonly written as?
10In jewelry, what purity (karat) corresponds to 75% gold by mass?
11Which process historically established national monetary systems by fixing currency values to gold?
12What is the approximate melting point of gold in degrees Celsius?