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Gold
Chemical element
Gold is a chemical element; it has the symbol Au and the atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of... Wikipedia
Symbol: Au
Density: 19.3 g.cm-3
Atomic number (Z): 79
Atomic radius: empirical: 144 pm
Block: d-block
Discovery: In the Middle East (before 6000 BCE)
Electron configuration: 4f14 5d10 6s1