In dmitri mendeleev periodic table; Gold atomic number of 79. This means that gold nuclei 79 around the rotation of the negatively charged electron. Gold is: in front of aluminum, osmium tetroxide neighbours; Platinum; Then the is: mercury, thallium, lead. Gold and pandora charms sale ruthenium, rhodium, palladium, osmium tetroxide, iridium, platinum, these metal has a very good chemical stability, so collectively referred to as precious metals. Talking about gold, best first talk about its nature, and then talk about how humans can use these properties. Interestingly, when people in identification, the most commonly used gold cheapst pandora is "very" word, rather than "the most" word. This is because the purity of gold to achieve "the most" degree is impossible. Gold is very heavy, but platinum heavier. Gold for 19.32 grams/cm density, i.e., "only for 46 mm in diameter, the weight of the golden one kilogram. Here refers to the density of pure chemical in pandora nature, and so the bullion to some extent is nonexistent. Gold "natural" density and relevant content of impurities from 15 a 16 grams/centimeters' to 18, 19 grams/centimeters. The volume of 1 litre glass bottles filled with gold ore, its weight is about 16 kilograms; The weight of the gold of its mining very sale favorable, use the most simple methods, such as using chute washing, you can obtain high recovery rates. The heaviest several metal, according to its density (g/cm.) Arrangement is as follows: a career-high 21.6 19.3 platinum, gold, lead, mercury, silver 13.6 1.14 10.5. Gold is a very soft metal, but not the pandora charms soft metal, because lead and tin more flexible. On the pure gold with fingernails can underline trace. This softness to gold is very easy to processing. However this to the owner for, and adornment is not ideal, because this is easy to make adornment ceng, make its loses luster wounds that affect pandora rings online beautiful. So when in use gold making jewelry, generally all want to add copper and silver, in order to improve its hardness. Gold is easy to wear, become an extremely fine powder, so HuangJinChang to decentralized state widely distributed in nature. In handling and processing around the site, often gold scattered a pandora braelet layer of extremely fine powders. Some have calculation people take this made a fortune. Gold easy forging and of course expands, it with its softness involved; To gold ductility and ductility is usually examined respectively. Gold in both 'performance of machinable degree, even make very adept people are surprised. Gold is only run into thickness; Microns (0.001 mm pandora beads discount transparent and through green of gold foil. 0.5 gram of gold can be drawn into a 160 meters long thread, a kilogram of gold foil can spread out 53 meters. Gold is a good conductor of heat and electricity, 'or rather very good conductor, but not the best conductors. The transmission properties of gold as platinum, mercury, lead, silver four kinds of pandora sterling silver metal. Gold for melting point of 1063. C, molten gold have higher volatile, as the temperature increases, enhance the recurrent exploration. Pure gold compressive strength is 10kg/m ㎡, the tensile strength and preprocessing method in 10 - about, generally between 30kg/m ㎡. Cold pull silk, the charms jewellery largest stress. Has a good CaoHuangSe gold metal luster. Can say gold in metals, color all the most yellow, so that even LianDan home mistaken for gold and sulfur belong to kind of minerals.