Unique Facts Of Gold

Gold is the only form of metal that is golden and yellow in color other metals may develop a yellowish color, but only after when they have reacted with other chemicals.
Nearly all of the gold on Earth came from meteoroid that barrage the planet over 200 million years after it composed.
Au is the element symbol of gold. The symbol of gold comes from the old Latin name for gold; it is aurum, which means "shining dawn" or "glow of sunrise."
Gold is extremely docile A single ounce of gold (about 28 grams) can be develop into a gold thread 5 miles (8 kilometers) long. Gold rags can even be used as decoration thread.
Flaccidity is a measure of how easily a material can be pummel into thin sheets. Gold is the most flexible element. A single troy of gold can be beaten out into a sheet that is 300 square feet. A sheet of gold can be made thin enough to be crystal - clear. Gold strongly reflects red and yellow. That’s why very thin sheets of gold may appear or look like greenish blue.
Although gold is a heavy, dense metal, it is generally treated non-toxic. Gold metal layers may be eaten in foods or drinks.
Pure elemental gold is 24 karat, while 18 karat gold is 75 percent pure gold, 14 karat gold is 58.5 percent pure gold, and 10 karat gold is 41.7 percent pure gold. The halting portion of the metal usually used in gold jewelry and items is silver, but items may also consist of other metals or a consolidation of metals, such as platinum, copper, palladium, zinc, nickel, iron, and cadmium.
Gold is a noble metal. It is comparably dormant and abides degradation by air, moisture, or acidic conditions. While acids flux most metals, a special mixture of acids called aqua regia is used to dissolve gold.
Gold has many uses aside from its budgetary and symbolic value. Among other applications or activities, it is used in electronics, electrical wiring, dentistry, electronics, medicine, radiation shielding, and to color glass.
High purity metallic gold is odorless and tasteless. This makes sense since the metal is unreactive.

By – Tripti Varun
Content - https://www.thoughtco.com/interesting-gold-facts-607641