Merkur (von lat. Merx [Ware], Sanskrit बुध budha, m., [klug, verständig, weise]), astronomisches Symbol ☿, ist der sonnennächste und schnellste Planet. CODE-Knacker - Lexikon der Codes-Symbole-Kurzzeichen: Planetensymbole. Merkur. Symbol steht für den geflügelten Helm des römischen Götterboten. Benannt ist der Merkur nach dem Götterboten Mercurius, dem römischen Gott der Händler und Diebe. Sein astronomisches Symbol ist ☿. Inhaltsverzeichnis. 1.
PLANETENSYMBOLESchau dir unsere Auswahl an merkur symbol an, um die tollsten einzigartigen oder spezialgefertigten, handgemachten Stücke aus unseren Shops zu finden. U+F mercury: ☿. CODE-Knacker - Lexikon der Codes-Symbole-Kurzzeichen: Planetensymbole. Merkur. Symbol steht für den geflügelten Helm des römischen Götterboten.
Symbol Merkur Merkur Symbol Video VideoGOLDIFY - Vergolden Sie ein Symbol! GOLDEN Gate
Und nimmt nur wenige Symbol Merkur Ihrer Zeit in Palazzo Dortmund. - InhaltsverzeichnisDas Ende des Schweren Bombardements schlug sich in der Entstehung des Caloris-Beckens und den damit verbundenen Landschaftsformen im Relief als Beginn der dritten Epoche eindrucksvoll nieder.
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You can help. Summary Description Mercury symbol. Nederlands: Astronomisch en astrologisch symbool voor de planeet Mercurius.
Compared to other metals, it is a poor conductor of heat, but a fair conductor of electricity. The coefficient of volume expansion is Solid mercury is malleable and ductile and can be cut with a knife.
A complete explanation of mercury's extreme volatility delves deep into the realm of quantum physics , but it can be summarized as follows: mercury has a unique electron configuration where electrons fill up all the available 1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p, 4d, 4f, 5s, 5p, 5d, and 6s subshells.
Because this configuration strongly resists removal of an electron, mercury behaves similarly to noble gases , which form weak bonds and hence melt at low temperatures.
The stability of the 6s shell is due to the presence of a filled 4f shell. An f shell poorly screens the nuclear charge that increases the attractive Coulomb interaction of the 6s shell and the nucleus see lanthanide contraction.
The absence of a filled inner f shell is the reason for the somewhat higher melting temperature of cadmium and zinc , although both these metals still melt easily and, in addition, have unusually low boiling points.
Mercury does not react with most acids, such as dilute sulfuric acid , although oxidizing acids such as concentrated sulfuric acid and nitric acid or aqua regia dissolve it to give sulfate , nitrate , and chloride.
Like silver, mercury reacts with atmospheric hydrogen sulfide. Mercury reacts with solid sulfur flakes, which are used in mercury spill kits to absorb mercury spill kits also use activated carbon and powdered zinc.
Mercury dissolves many metals such as gold and silver to form amalgams. Iron is an exception, and iron flasks have traditionally been used to trade mercury.
Several other first row transition metals with the exception of manganese , copper and zinc are also resistant in forming amalgams.
Other elements that do not readily form amalgams with mercury include platinum. Mercury readily combines with aluminium to form a mercury-aluminium amalgam when the two pure metals come into contact.
Since the amalgam destroys the aluminium oxide layer which protects metallic aluminium from oxidizing in-depth as in iron rusting , even small amounts of mercury can seriously corrode aluminium.
For this reason, mercury is not allowed aboard an aircraft under most circumstances because of the risk of it forming an amalgam with exposed aluminium parts in the aircraft.
Mercury embrittlement is the most common type of liquid metal embrittlement. There are seven stable isotopes of mercury, with Hg being the most abundant The longest-lived radioisotopes are Hg with a half-life of years, and Hg with a half-life of Most of the remaining radioisotopes have half-lives that are less than a day.
Hg is the modern chemical symbol for mercury. The element was named after the Roman god Mercury , known for his speed and mobility. Mercury is the only metal for which the alchemical planetary name became the common name.
Mercury was found in Egyptian tombs that date from BC. In China and Tibet , mercury use was thought to prolong life, heal fractures, and maintain generally good health, although it is now known that exposure to mercury vapor leads to serious adverse health effects.
In November "large quantities" of mercury were discovered in a chamber 60 feet below the year-old pyramid known as the " Temple of the Feathered Serpent ," "the third largest pyramid of Teotihuacan ," Mexico along with "jade statues, jaguar remains, a box filled with carved shells and rubber balls.
The ancient Greeks used cinnabar mercury sulfide in ointments; the ancient Egyptians and the Romans used it in cosmetics. In Lamanai , once a major city of the Maya civilization , a pool of mercury was found under a marker in a Mesoamerican ballcourt.
Alchemists thought of mercury as the First Matter from which all metals were formed. They believed that different metals could be produced by varying the quality and quantity of sulfur contained within the mercury.
The purest of these was gold, and mercury was called for in attempts at the transmutation of base or impure metals into gold, which was the goal of many alchemists.
Mercury is an extremely rare element in Earth's crust , having an average crustal abundance by mass of only 0. The richest mercury ores contain up to 2.
It is found either as a native metal rare or in cinnabar , metacinnabar, corderoite , livingstonite and other minerals , with cinnabar HgS being the most common ore.
Beginning in , with the invention of the patio process to extract silver from ore using mercury, mercury became an essential resource in the economy of Spain and its American colonies.
Mercury was used to extract silver from the lucrative mines in New Spain and Peru. The patio process and later pan amalgamation process continued to create great demand for mercury to treat silver ores until the late 19th century.
Mercury is extracted by heating cinnabar in a current of air and condensing the vapor. The equation for this extraction is. In , China was the top producer of mercury with almost two-thirds global share followed by Kyrgyzstan.
Because of the high toxicity of mercury, both the mining of cinnabar and refining for mercury are hazardous and historic causes of mercury poisoning.
Thousands of prisoners were used by the Luo Xi mining company to establish new tunnels. The European Union directive calling for compact fluorescent bulbs to be made mandatory by has encouraged China to re-open cinnabar mines to obtain the mercury required for CFL bulb manufacture.
Environmental dangers have been a concern, particularly in the southern cities of Foshan and Guangzhou , and in Guizhou province in the southwest.
Abandoned mercury mine processing sites often contain very hazardous waste piles of roasted cinnabar calcines. Water run-off from such sites is a recognized source of ecological damage.
Former mercury mines may be suited for constructive re-use. For example, in Santa Clara County, California purchased the historic Almaden Quicksilver Mine and created a county park on the site, after conducting extensive safety and environmental analysis of the property.
Mercury exists in two oxidation states, I and II. Unlike its lighter neighbors, cadmium and zinc, mercury usually forms simple stable compounds with metal-metal bonds.
Stable derivatives include the chloride and nitrate. Treatment of Hg I compounds complexation with strong ligands such as sulfide, cyanide, etc.
It is a standard in electrochemistry. It reacts with chlorine to give mercuric chloride, which resists further oxidation. Indicative of its tendency to bond to itself, mercury forms mercury polycations , which consist of linear chains of mercury centers, capped with a positive charge.
Mercury II is the most common oxidation state and is the main one in nature as well. All four mercuric halides are known.
Best known is mercury II chloride , an easily sublimating white solid. HgCl 2 forms coordination complexes that are typically tetrahedral, e.
Mercury II oxide , the main oxide of mercury, arises when the metal is exposed to air for long periods at elevated temperatures. Being a soft metal , mercury forms very stable derivatives with the heavier chalcogens.
Preeminent is mercury II sulfide , HgS, which occurs in nature as the ore cinnabar and is the brilliant pigment vermillion. Like ZnS, HgS crystallizes in two forms , the reddish cubic form and the black zinc blende form.
Mercury II salts form a variety of complex derivatives with ammonia. Mercury fulminate is a detonator widely used in explosives.
Organic mercury compounds are historically important but are of little industrial value in the western world. Mercury II salts are a rare example of simple metal complexes that react directly with aromatic rings.
Organomercury compounds are always divalent and usually two-coordinate and linear geometry. Unlike organocadmium and organozinc compounds, organomercury compounds do not react with water.
They usually have the formula HgR 2 , which are often volatile, or HgRX, which are often solids, where R is aryl or alkyl and X is usually halide or acetate.
Methylmercury , a generic term for compounds with the formula CH 3 HgX, is a dangerous family of compounds that are often found in polluted water.
They are made entirely of metal and designed for long-term use. The stainless steel double edge exchangeable razor blades are fully recyclable.
First, moisturize your skin with warm water so that your hair can soften. Then you lather up your face or body part with shaving cream or shaving soap well.
After a few minutes, you set your razor and stroke it straight and gentle over the skin. For thoroughgoing cleaning, you can disassemble the razor and, if necessary, clean it with detergent and a brush.
You will need replaceable double edge razor blades for your razor. It's adequate to change the blades after shaves.
Mercury was also considered a god of abundance and commercial success, particularly in Gaul , where he was said to have been particularly revered.
Additionally, Ovid wrote that Mercury carried Morpheus ' dreams from the valley of Somnus to sleeping humans. Archeological evidence from Pompeii suggests that Mercury was among the most popular of Roman gods.
When they described the gods of Celtic and Germanic tribes, rather than considering them separate deities, the Romans interpreted them as local manifestations or aspects of their own gods, a cultural trait called the interpretatio Romana.
Mercury, in particular, was reported as becoming extremely popular among the nations the Roman Empire conquered; Julius Caesar wrote of Mercury being the most popular god in Britain and Gaul, regarded as the inventor of all the arts.
Although Lugus may originally have been a deity of light or the sun though this is disputed , similar to the Roman Apollo , his importance as a god of trade made him more comparable to Mercury, and Apollo was instead equated with the Celtic deity Belenus.
Romans associated Mercury with the Germanic god Wotan , by interpretatio Romana ; 1st-century Roman writer Tacitus identifies him as the chief god of the Germanic peoples.
Mercury is known to the Romans as Mercurius and occasionally in earlier writings as Merqurius , Mirqurios or Mircurios , had a number of epithets representing different aspects or roles, or representing syncretisms with non-Roman deities.
The most common and significant of these epithets included the following:. In Ovid 's Fasti , Mercury is assigned to escort the nymph Larunda to the underworld.
Department of Physics at Fizik Bolumu in Turkey, Twelve Year Planetary Ephemeris Directory. American Astronomical Society Meeting , Archiv für Orientforschung , Austria 24 , Liddell and R.
Scott, rev. Jones and R. The Planet Mercury. Shaldon, Devon: Keith Reid Ltd, 9— Birkhäuser Samskrita Bharati The Cambridge Planetary Handbook.
University of Texas Press Sky and Telescope 72 , Seeing in the Dark: How Amateur Astronomers. Simon and Schuster Symbolic Orca Whale Meaning.
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