03.11.2011., četvrtak



What Is The Chemical Symbol For Silver

what is the chemical symbol for silver

    chemical symbol
  • A chemical symbol is a 1- or 2-letter internationally agreed code for a chemical element, usually derived from the name of the element, often in Latin. The first letter, only, is capitalised.

  • A shorthand way of representing an element in formula and equations. Sodium Chloride is represented in chemical symbols by NaCl (Na is Sodium and Cl is Chlorine).

  • An abbreviation or short representation of a chemical element; the symbols in the periodic table

    what is
  • prize indemnity?   In everyday terms, Prize Indemnity is prize coverage without the prize risk. It's that simple.

  • Is simply the glossary of terms and acronyms, you can find them below in alphabetic order. Fundamental concepts and acronyms may also have an associated Blog post, if that is the case the acronym or term will be hyper-linked to the respective post.

  • What Is is the eighth album by guitarist/vocalist Richie Kotzen.

  • (esp. of the moon) Give a silvery appearance to

  • a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

  • Provide (mirror glass) with a backing of a silver-colored material in order to make it reflective

  • coat with a layer of silver or a silver amalgam; "silver the necklace"

  • Coat or plate with silver

  • made from or largely consisting of silver; "silver bracelets"

London: British Museum - Sutton Hoo Helmet - 6th-7th Century

London: British Museum - Sutton Hoo Helmet - 6th-7th Century

This extraordinary helmet is very rare. Only four helmets dating to the early medieval period have been found so far in England: at Sutton Hoo, Benty Grange, Wollaston and York.

The helmet has panels decorated with interlacing Style II animal ornament and heroic scenes, motifs that were common in the Germanic world at this time. One scene shows two warriors, wearing horned helmets, holding short swords and down-turned spears. The other shows a mounted warrior trampling a fallen enemy, who in turn is stabbing the horse, a theme handed down from the Roman Empire.

The face-mask is the most remarkable feature of the helmet: it has eye-sockets, eyebrows and a nose, which has two small holes cut in it to allow the wearer to breathe freely. The bronze eyebrows are inlaid with silver wire and garnets. Each ends in a gilt-bronze boars-head - perhaps a symbol of strength and courage.

Placed against the top of the nose, between the eyebrows, is a gilded dragon-head that lies nose to nose with a similar dragon-head placed at the end of the low crest that runs over the cap. The nose, eyebrows and dragon make up a great bird with outstretched wings that flies on the helmet.

The helmet was badly damaged when the burial chamber collapsed. By precisely locating the remaining fragments as if in a three-dimensional jigsaw puzzle, the helmet has been rebuilt. A complete reconstruction has also been made.

Who was buried at Sutton Hoo?
No trace of a body was found during the 1939 excavation of the Sutton Hoo ship-burial. Analyses of soil samples for residual phosphate (a chemical left behind when a human or animal body has completely decayed away), taken in 1967 during the British Museum's excavations, support the idea that a body was originally placed in the burial chamber, but that this had totally decayed in the highly acidic conditions at the bottom of the ship. The burial also contained a leather purse with a jewelled lid. It held a group of thirty-seven Merovingian gold tremisses from Francia, three coin-sized blanks and two billets (ingots). All the identifiable coins were struck at different mints after around AD 595 and probably before around AD 640. They are important because they give the burial a terminus post quem, i.e. the time at which the earliest coins were minted is the earliest possible time at which they could have been included in the burial.

This in turn gives us some clues as to who may have been buried in this sumptuous grave. For example, there are four kings who may have been buried here: Raedwald who was overlord of the English kingdoms between AD616 and his death (at the latest in 627, probably in 625/6), Eorpwald (died 627/8) and co-regents Sigebert and Ecric, who both died fighting Penda of Mercia in AD 637. Of these, opinion is divided between Raedwald, a convert to Christianity who abandoned his faith, and Sigebert, a devout Christian. But we do not know what a king's burial would have looked like, so we cannot exclude the possibility that Mound 1 was, for example, for a member of the royal kin or a powerful member of a high-ranking family.

All the objects in this burial were carefully chosen so that in the afterlife the dead man would have everything with him that had been familiar to him in life. Many of these possessions, even to the modern eye, are extraordinary and they allow us a glimpse into a life that relied on simple technology but was still sumptuous and sophisticated - a lifestyle that is described in the poem Beowulf, which, although written down a couple of centuries after the burial, vividly brings to life this earlier heroic period.
(British Museum web site)

Chemical symbols of the elements, as arranged in the peridioc table.

Chemical symbols of the elements, as arranged in the peridioc table.

Chemical symbols of the elements, as arranged in the peridioc table! The cake decorations were prepared by the Advanced higher chemistry pupils in Harris Academy, Dundee on 14 May 2009.

what is the chemical symbol for silver

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