Krypton - Krypton Bromine - Krypton Ar Kr Xe Full table General Name, Symbol, Number Krypton, Kr, 36 Chemical series Noble gases Group, Period, Block 18 (VIIIA), 4 , p Density, Hardness 3.708 kg/m3 (273 K), NA Appearance colorless Atomic Properties Atomic weight 83.798 amu Atomic radius (calc.) no data (88) pm Covalent radius 110 pm van der Waals radius 202 pm Electron configuration [Ar]33d10 4s2 4p6 e- 's per energy level 2, 8, 18, 8 Oxidation states (Oxide) 0 (unknown) Crystal structure Cubic face centered Physical Properties State of matter gas (nonmagnetic) Melting point 115.79 K (-251.25 °F) Boiling point 119.93 K (-153.22 °F) Molar volume 27.99 ×1010-3 m3/mol Heat of vaporization 9 .029 kJ/mol Heat of fusion 1 .638 kJ/mol Vapor pressure NA Speed.
Kryptonite - by writer John Byrne, the pre-Crisis DC Universe was home to a variety of elements called Kryptonite. Kryptonite was produced from the material of Superman's home planet Krypton, when it was destroyed in an explosion. Kryptonite is usually found in the form of a glowing green rock or metal, but crystalline forms have also made appearances (most notably Jewel Kryptonite, see below) along with different-colored variants such as red kryptonite. These different forms may represent multiple allotropes or isotopes of Kryptonite, or a more exotic variation in composition based on currently unknown particles. Near the end of the run of the Pre-Crisis Superman, all known Kryptonite on Earth was transmuted into iron, but Kryptonite can be synthetically manufactured by a variety of unknown means and additional material left over from the.
Krypton (planet) - Krypton (planet) The fictional planet Krypton was the birthplace of Kal-El, better known as Superman. The planet, presumably named after the chemical element Krypton, was created by Jerry Siegel and Joe Shuster for the syndicated daily newspaper strip in 1939 and later brought into the comic books. Krypton no longer exists in the DC Comics universe, as it exploded as a result of highly unstable geological conditions. The entire civilization and race of Krypton perished in the explosion, except for one sole survivor: the baby Kal-El, who was placed in an escape rocket by his father Jor-El and sent to the planet Earth. "Old Krypton" There have been two versions of Krypton (so far) in the history of Superman. The first version developed gradually over the.
KRYPTON - KRYPTON The KRYPTON programming language is a frame language. "An Essential Hybrid Reasoning System: Knowledge and Symbol Level Accounts of KRYPTON", R.J. Brachman et al, Proc IJCAI-85, 1985. This article (or an earlier version of it) contains material from FOLDOC, used with permission..
Krypton (disambiguation) - Krypton (disambiguation) see Krypton (planet) - fictional planet, from Superman stories Krypton (element) - chemical element KRYPTON (programming language) This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix the link, so that it points to a specific page..
The Krypton Factor - The Krypton Factor The Krypton Factor was a British game show, hosted by Gordon Burns, which ran from 1977 to 1995 on ITV. Four contestants would compete in several different games, some studio-bound, some not. Each was introduced by the distinctive K logo, which would morph into a symbol for the round. Some of the actual games were changed during the run of the series, but the qualities they purported to test remained the same: Mental agility - often a memory test. Response - latterly (and most famously) this consisted of each player taking turns on a flight simulator and being marked by an actual flight instructor. Observation - this involved watching a specially made video clip. Physical ability - probably the most memorable of the.
Inert gas - member of the noble gas family. Examples include: helium, neon, argon, xenon, krypton, and radon..
Iridium - too close to call. Applications The principal use of iridium is as a hardening agent in platinum alloys. Other uses; For making crucibles and devices that require high temperatures. Electrical contacts (notable example; Pt/Ir sparkplugs). Osmium/iridium alloys are used for ballpoint pen tips and for compass bearings. At one time iridium, as an alloy with platinum, was used in bushing the vents of heavy ordnance and in a finely powdered condition (iridium black), for painting porcelain black. History Iridium (Latin iris meaning "rainbow") was discovered in 1803 by Smithson Tennant in London, England along with osmium in the dark colored residue of dissolving crude platinum in aqua regia (a mixture of hydrochloric and nitric acid). This element was named after the Latin word for rainbow because its salts are highly colored..
Heat of vaporization - 330.9 Gold 334.4 Hafnium 575 Helium 0.0845 Element Heat of vaporization (kJ/mol) Hydrogen 0.44936 Indium 231.5 Iodine 20.752 Iridium 604 Iron 349.6 Krypton 9.029 Lanthanum 414 Lead 177.7 Lithium 145.92 Magnesium 127.4 Manganese 226 Mercury 59.229 Molybdenum 598 Neon 1.7326 Neptunium n/a Nickel 370.4 Niobium 696.6 Nitrogen 2.7928 Osmium 627.6 Oxygen 3.4099 Palladium 357 Phosphorus 12.129 Platinum 510 Polonium 60.1 Potassium 79.87 Radium 37 Element Heat of vaporization (kJ/mol) Radon 16.4 Rhenium 715 Rhodium 493 Rubidium 72.216 Ruthenium 595 Scandium 314.2 Selenium 26.3 Silicon 384.22 Silver 250.58 Sodium 96.96 Strontium 144 Sulfur 1.7175 Tantalum 743 Technetium 660 Tellurium 52.55 Thallium 164.1 Thorium 514.4 Tin 295.8 Titanium 421 Tungsten 824 Vanadium 452 Xenon 12.636 Yttrium 363 Zinc 115.3 Zirconium 58.2 .
Fluorine - (L fluere meaning flow or flux) in the form of fluorspar was described in 1529 by Georigius Agricola for its use as a flux, which is a substance that is used to promote the fusion of metals or minerals. In 1670 Schwandhard found that glass was etched when it was exposed to fluorspar that was treated with acid. Karl Scheele and many later researchers, including Humphry Davy, Gay-Lussac, Antoine Lavoisier, and Louis Thenard all would experiment with hydrofluoric acid (some experiments would end in tragedy). This element was not isolated for many years after this due to the fact that when it is separated from one of its compounds it immediately attacks the remaining materials of the compound. Finally in 1886 fluorine was isolated by Henri Moissan after almost 74 years.
Elliot S! Maggin - understading of the principals of heroism, mixed with imaginative stories kept the iconic character popular for over 20 years. He also wrote for Green Arrow where his sense of humour was allowed far more freedom in the loose dialogue of the main character. He wrote hundreds of comic stories, television scripts, stories for film, animation and journalistic pieces. He wrote two Superman novels: Last Son of Krypton and Miracle Monday, both considered classics by fans. He served as an editor for DC comics for a time and has also raised horses, run for public office in New Hampshire, taught at various high schools and colleges as well as ski resorts, wrote stories for Atari games, and has worked on websites. Due to the fact that comic book scripts tend to favor.
Electron orbital - Sulfur 2 8 6 17 Chlorine 2 8 7 18 Argon 2 8 8 19 Potassium 2 8 8 1 20 Calcium 2 8 8 2 21 Scandium 2 8 9 2 22 Titanium 2 8 10 2 23 Vanadium 2 8 11 2 24 Chromium 2 8 13 1 25 Manganese 2 8 13 2 26 Iron 2 8 14 2 27 Cobalt 2 8 15 2 28 Nickel 2 8 16 2 29 Copper 2 8 18 1 30 Zinc 2 8 18 2 31 Gallium 2 8 18 3 32 Germanium 2 8 18 4 33 Arsenic 2 8 18 5 34 Selenium 2 8 18 6 35 Bromine 2 8 18 7 36 Krypton 2 8 18 8 37 Rubidium 2 8 18 8 1 38 Strontium.
Discoveries of the chemical elements - table and the prediction of new elements In 1871, Mendeleev predicted, from the gaps in his newly-devised periodic table, that there should be three as yet undiscovered elements, which he named eka-boron, eka-aluminium, and eka-silicon. With Mendeleev's prediction of their existence and approximate chemical properties, the missing elements were found by French, Scandinavian, and German chemists, and named for their countries of discovery, as gallium, scandium, and germanium: Gallium 1875 de Boisbaudran Ytterbium 1878 Jean de Marignac Thulium 1879 P.T. Cleve Scandium 1879 Nilson Holmium 1879 J.L. Soret Samarium 1879 Paul Emile Lecoq de Boisbaudran Gadolinium 1880 Jean de Marignac The 'didymium' isolated by Mosander in 1839 was shown to actually be two separate elements, praseodymium and neodymium: Praseodymium 1885 Carl Auer von Welsbach Neodymium 1885 Carl Auer von Welsbach Dysprosium.
Autonomous building - surface water. Autonomous buildings can address precipitation in a number of ways: If a water-absorbing swale for each yard is combined with permeable concrete streets, storm drains can be omitted from the neighbourhood. This can save more than $500 per house by eliminating storm drains. One fine way to use the savings is to purchase larger lots, which permits more amenitiies at the same cost. Permeable concrete is an established product in warm climates, and in development for freezing climates. In freezing climates, eliminating storm drains can often still purchase enough land to construct swales instead, which still provides more land for homeowners. A green roof captures precipitation and uses the water to grow plants. It can be built into a new building or used to replace an existing roof. Electricity.
Bromine - Bromine Selenium - Bromine - Krypton Cl Br I Full table General Name, Symbol, Number Bromine, Br, 35 Series Halogens Group, Period, Block 17 (VIIA), 4 , p Density, Hardness 3119 kg/m3 (300 K), NA Appearance Gas: red-brown solid: metallic luster Atomic Properties Atomic weight 79.904 amu Atomic radius (calc.) 115 (94) pm Covalent radius 114 pm van der Waals radius 185 pm Electron configuration [Ar]33d10 4s24p5 e- 's per energy level 2, 8, 18, 7 Oxidation states (Oxide) ±1,5 (strong acid) Crystal structure Orthorhombic Physical Properties State of matter liquid (nonmagnetic) Melting point 265.8 K (19 °F) Boiling point 332 K (138 °F) Molar volume 19.78 ×1010-3 m3/mol Heat of vaporization 15.438 kJ/mol Heat of fusion 5.286 kJ/mol Vapor pressure 5800 Pa at 280.1 K Speed.
Cadmium - a yellow pigment. Used in some semiconductors. Some cadmium compounds are employed in PVC as stabilizers. History Cadmium (Latin cadmia, Greek kadmeia meaning "calamine") was discovered in Germany in 1817 by Friedrich Stromeyer. Stromeyer found the new element within an impurity in zinc carbonate (calamine) and for 100 years Germany remained the only important producer of the metal. The metal was named after the Latin word for calamine since the metal was found in this zinc compound. Stromeyer noted that some impure samples of calamine changed color when heated but pure calamine did not. Even though cadmium and its compounds are highly toxic, the British Pharmaceutical Codex from 1907 states that cadmium iodide was used as a medicine to treat "enlarged joints, scrofulous glands, and chilblains". The International Conference on Weights.
Clark Kent - while Jeb rode as the leader of a band of bandits. Eventually, he discovered he had a son out of wedlock from years ago and allowed him to join his gang. Unfortunately, he turned out to be a murderous sociopath and Jeb approached his estranged brother to arrange a trap to stop his son. Unfortunately in springing the trap, the son mortally wounded his father before being killed himself and Jeb fully reconciled with Nate before dying. Nate remained in Smallville and the Kents have stayed for generation up to Jonathon and Martha who discovered Kal-El who arrived from the destroyed Planet Krypton..
Critical temperature - of the critical properties, ie.: The principle of corresponding states, indicates that substances at equal reduced pressures and temperatures have equal reduced volumes. This relationship is approximately true for many substances, but becomes increasingly inaccurate for large values of Pr Two immiscible liquids, such as oil and water, will also have a critical temperature and pressure at which the two phases will become consolute. Critical temperature of selected elements Element Critical temperature (°C) Argon -122.29 Arsenic 1400 Bromine 315 Chlorine 143.8 Fluorine -128.85 Helium -267.96 Hydrogen -240.17 Iodine 546 Krypton -63.7 Mercury 1477 Neon -228.75 Nitrogen -146.9 Oxygen -118.57 Phosphorous 721 Radon 105 Selenium 1493 Sulfur 1041 Xenon 16.58 See also Critical exponents..
Thirty-six - 6, 9, 12, 18 and 36, making it a highly composite number; its factorisation is This number is the sum of a twin prime (17 + 19). Thirty-six is also: The atomic number of krypton. On the piano, the total amount of black keys (for notes not on the C major scale). The code for direct dial international phone calls to Hungary. List of numbers Thirty-four - Thirty-five - Thirty-six - Thirty-seven - Thirty-eight Integer.
Timeline of quantum mechanics, molecular physics, atomic physics, nuclear physics, and particle physics - air 1895 William Ramsay discovers terrestrial helium by spectroscopically analyzing gas produced by decaying uranium 1896 Antoine Becquerel discovers the radioactivity of uranium 1896 Pieter Zeeman studies the splitting of sodium D lines when sodium is held in a flame between strong magnetic poles 1897 Joseph Thomson discovers the electron 1898 William Ramsay and Morris Travers discover neon, krypton, and xenon 1898 Marie Curie and Pierre Curie isolate and study radium and polonium 1899 Ernest Rutherford discovers that uranium radiation is composed of positively charged alpha particles and negatively charged beta particles 1900 Paul Villard discovers gamma-rays while studying uranium decay 1900 Johannes Rydberg refines the expression for observed hydrogen line wavelengths 1900 Max Planck states his quantum hypothesis and blackbody radiation law 1902 Philipp Lenard observes that maximum photoelectron energies.
