atomic number 79

Noun atomic number 79 has 1 sense

• atomic number 79(n = noun.substance) au, gold - a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia;
is a kind of noble metal
has particulars: 24-karat gold, pure gold, gold dust, green gold, guinea gold