Gold is the 79th element on the periodic table of the elements. Its atomic symbol is ‘Au’ that came from the old Latin name for gold, ‘Aurum’ that means ‘shining dawn’. Gold is the only metal that naturally has a shiny yellow color. It is the most malleable element. A single ounce of gold can be hammered into a 300 square feet sheet which is even bigger than a football field. This metal is also included in noble metals as it is chemically unreactive and does not degrade by air, moisture or acidic conditions.
Fun Facts: –
- Gold has a high monetary and symbolic value. It also has various applications like in electronics, dentistry, medicine etc.
- It is an extremely ductile metal as a single ounce can be stretched into 5 miles long thread.
- Completely pure metallic gold does not have any odor or taste.
- 24 karat gold is completely pure and it cannot be used to make jewellery or coins because it is very soft. It is alloyed with other metals like silver or copper.
- It has only one naturally occurring stable isotope, gold-197.
- This metal does not tarnish when exposed to the air. This is the reason it is preferably used in making electrical connectors.
- It is a good conductor of heat and electricity and a good reflector of infrared radiation.
- Gold-198 is a radioactive isotope of the metal and used in the treatment of cancer.
- There is an estimated total of 10 billion tons of gold in the world’s ocean. There is no way to economically recover it.
- It is the 58th rarest element in all 92 naturally occurring element that can be found in the earth’s crust.
- Until 1912, Olympic medals were of pure gold.
- Few scientists believe that this precious metal can be found on Mars, Venus, and Mercury.