NAME THE ELEMENT
GOLD
GOLD
Name: Gold
Atomic number: 79
Atomic mass: 196.96657
Solid at room temperature
Used for jewelry and used in industries to make jewelryINTERESTING FACTS
· The largest gold weighs 250 kg
· Gold is edible
· Gold has been discovered on every continent on earth.
· Or bodies contain about 0.02 in our bodies.
· Earthquakes turns water into gold.
PHYSICAL PROPERTIES
Gold is metallic, with a yellow color when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile metal; 1 ounce of gold can be beaten out to 300 square feet. It is a soft metal and is usually alloyed to give it more strength. It is a good conductor of heat and electricity, and is unaffected by air and most reagents.
CHEMICAL PROPERTIES
Activity Gold is chemically inactive, it's extremely resistant to chemical action
Compounds Ready conductibility from compounds to metal.
Auric chloride and chloro-auric acid are its most common compounds.
Re activity with acids Aqua regalia, a mixture of nitric and hydrochloric acids, has the ability to dissolve gold
IsotopesIt has one stable isotope, 197Au
Reactivity with Non-metalsGold does not react with the Non-metals, except for halogens, with which it forms halides
Alloys Silver and platinum