Atomic number gold

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Why is gold’s atomic number 79?

Gold
Chemical element with symbol Au and atomic number 79

Basic Characteristics
Bright, slightly orange-yellow, dense, soft, malleable, and ductile metal.

Chemical Classification
Transition metal, group 11 element, noble metal.

Natural Occurrence
Often found in free elemental (native) state, in rocks, veins, and alluvial deposits.

According to the information provided in the search results, gold’s atomic number is 79 for the following reasons:

The search results state that “Gold is element 79, and we call that number the atomic number. It’s like a serial number, starting at 1, the simplest element. As the atomic number increases, the atoms have more parts and thus become more complex.”

The periodic table information provided in the search results confirms that the atomic number of gold is 79.

The explanation given is that the atomic number represents the number of protons in the nucleus of the atom.

As elements become more complex, their atomic number increases. Gold, with 79 protons, is one of the heavier and more complex naturally occurring elements on the periodic table.

So in summary, gold’s atomic number is 79 because that is the specific number of protons in the nucleus of a gold atom, making it the 79th element on the periodic table.

The atomic number increases as elements become more complex in their atomic structure.

Atomic number gold

Gold

Au

 

 

 

Atomic number: 79

Atomic mass: 196.967

Melting point: 1064.43 ° c

Boiling point: 2807 ° c

Density: at 19.32 g/cm3

Parity: 3.1

Electronic distribution: Xe] 4F14.5d10.6S1]

 

 

Gold history and existence in nature

 

Gold is the first metal was recognized by humans, in the middle of the stone age (about 8000 BC)

Dating the origin of gold label English geolo yellow means while the origin of the symbol from the Latin aurum meaning gold.

The ancient Egyptians had a long history in search of gold, extracted and acquire no gold deposit discovered only recently and had the ancients have primacy, and earliest geologic map of the mine on Papyrus for the potteries in the gold mine in the eastern desert of Egypt and saved the Louvre in France. Geologists estimate that the average concentration of gold in the crustal rocks is five per billion, this percentage varies from rock to another. And there are two basic types of raczat gold veins are tributaries.

 

 

There is gold in the individual case (free) any original condition and form veins there is also mixed with other metals including silver and various ratios, nature gold seems inherent in other elements such as copper, iron, mercury, antimony, tellurium, rhodium, palladium and other walbzmoth, and are often not attend alberit, iron sulphate, therefore often mailga to these metals are developed for the precious metal, gold is widespread in nature is widespread on the surface of the Earth’s crust below the depth of 3 km , There are very few ratios up to 100 part part of the million, a very small percentage do any meaningful recovery, sea water also contains gold in different proportions according to location, generally gold found in igneous rocks, as there is with quartz to form small granules and also with sand or riverbeds, gold can be obtained as a by-product when you draw some other metals such as copper, nickel and silver electrical methods.

 

 

Nature’s gold stocks is estimated at about 70,000 tons, which is 40 times more than the annual production of gold in the world.

 

 

Gold recovery

 

There are three general ways to extract gold and chlorination (old method are not used at the moment) and mined walsindh.

 

1_ mined

 

Mined based on dissolution of gold in mercury, and boils down to crush ore and passed plates of copper submerged in mercury, slimming 55% so that when touching balls of mercury with gold it moistening then infiltrates the gold balls component mg gold.

Feature this way undemanding and low operating costs but use an extracting large amounts of gold in raw processor.

 

 

2 alsenada

 

Alsenada is a production of 90% of the gold, and relies on dissolving gold ore in dilute solution (0.03%) of sodium cyanide or potassium in a sufficient quantity of oxygen, they reacts with gold composite component solution gold alsodiomi or albotasiomi, which dissolves well in water.

 

 

xx4Au+8NaCN+2H2O+O2—–>4Na[Au(CN)2]+x4NaOH

 

 

Gold can be obtained from complex solution dissolved through downsampling with zinc powder or aluminium, liberalized gold according to the following equation:

 

 

x2Na[Au(CN)2]+Zn—–>Na2[Zn(CN)4]+x2Au