Question: what are the physical and chemical properties of gold?
Answer: Density : 19,300 kg per cubic metre.
Melting point : 1337.33 K (1064.18 °C).
Boiling point : 3129 K (2856 °C).
Atomic number : 79.
Nucleic protons : 79.
Atomic weight : 197.
Nucleic neutrons (normal) : 118.