
Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a transition metal and a group 11 element...
Timeline of Events
631
|
|
||
1539
|
|
||
1848
|
|
||
1849
|
|
||
1864
|
|
||
1869
|
|
||
1926
|
|
||
1933
|
|
||
1938
|
|
||
1968
|
|
||
1983
|
|
||
2008
|
|