Physical Properties of Gold or Au

Gold or Au
Gold is utilized as a medicine in the treatment of a diverse number of medical conditions including cancer and serious medical conditions. Gold is a metallic element and is atomic number is 79. Gold is soft, has a yellow color to it, and is shiny, dense, malleable and ductile. Gold does not react with most chemicals however it can be attacked by chlorine, aqua regia and fluorine. Gold can be found in the form of nuggets or as grains in rocks or specks and it can also be found in alluvial deposits. The measurement of gold is in troy weight and grams. When gold is alloyed with other metals, the term “Karat” is employed to show the amount of gold that can be found in the alloy. Pure gold nonetheless, is of 24 Karats.

Physical Properties of Gold or Au

Stage: room temperature
Solidity: 19.3 g/ cm3
Stage: liquid at melting point
Solidity: 17.31 g/ cm 3
Stage: liquid density at melting point
Solidity: 17.31 g/ cm3
Stage: melting point
Solidity: 1064.18 degrees C., 1947.52 degrees F.
Stage: boiling point
Solidity: 2856 degrees C., 5173 degrees F.
Stage: heat of fusion
Solidity: 12.55 kJ mol
Stage: heat of vaporization
Solidity: 324 kJ mol
Stage: capacity of heat
Solidity: 25 degrees C.

Atomic properties of gold:

Crystal structure: cubic face centered
Oxidation states: 3,1 (amphoteric oxide)
Electro negativity: 2.54 (Pauling scale)
Ionization energies: 890.1 kJ mol
Atomic radius: 135 pm
Covalent radius: 144 pm
Van der Waals radius: 166 pm